I went to Ikeshima in Nagasaki.

I went to Ikeshima last weekend because I wanted to see the coal mine.
Ikeshima is a small island in Nagasaki. Many people used to live on in this island. This island had a was thriving in coal mine, but this coal mine has have not been used since 2001. This island has many apartments, but only 151 people live in these apartments live only 151 people nowadays.
Ikeshima was very beautiful. It was very breathtaking.
If you come to Nagasaki, please go to Ikeshima.

When combining two sentences using "but," a comma comes before "but," not after, and the following word is not capitalized. 

Help (please)

Hi,

Could you please help me?

1) About the glitches in a game, Should you say

"I played the 1.3 version of the game on moderate the first time. Then I played it on crushing, but I didn't get any trophies. because It said I had completed chapter 6 on moderate, and not on crushing. I couldn't stomach another entire crushing playthrough crushing FOR IT (the game) TO DO the same thing, so I rolled back to the version 1.0"
OR
"(...) Then I played it on crushing, but I didn't get any trophies. because It said I had completed chapter 6 on moderate, and not on crushing. I couldn't stomach another entire crushing playthrough only TO HAVE IT (the game) DO the same thing, so I rolled back to the version 1.0"

FOR IT TO DO OR TO HAVE IT DO? Either is fine. It is a matter of personal preference. 

2) Should I use by or in here? According to the internet, it looks like the first should be "by" and the second "in." However, most American's will be able to understand you if you use either preposition. Most people use these prepositions interchangeably. 

TV shows are really pushing the envelope by/in showing so much sex and violence.
They are pushing the envelope in/by using only new fabrics for winter clothing.

Please, I need your help!

Thank you!

Mike's answer above is correct, but I would like to add a little to it. There is also a difference in the grammatical construction. Hope usually takes a future tense, where as wish takes past tense. In Mike's example, "I hope they can come to the party" or "I hope they will come to the party" takes a present or future tense of the verbs -- can and will. Whereas, "I wish they were able to come to the party" or "I wish they could come to the party" takes a past tense version -- were and could.

A.

"Harsh" implies that something is strong and possibly painful. For example, a teacher my harshly critique your writing. There is no intention on the teacher's part to cause you pain (even though you may feel sad or hurt that there are corrections all over your paper, and you received a D). A harsh punishment is generally a strong punishment but generally not considered excessive. "Brutal" implies that something is excessive and is usually painful. For example, a brutal criticism (unlike a harsh criticism) probably goes beyond just correcting mistakes. A brutal criticism may attack the person as well (ex. "This writing is idiotic" instead of "This sentence is grammatically incorrect.") Generally something that is brutal is often painful or causes pain. A workout can be brutal if at the end of it you're exhausted and sore for the next few days, but a workout wouldn't be harsh. If you're familiar with Game of Thrones, then the winters in the north are brutal. (You may be able to say the winters in the south are harsh. The winters in the north are more extreme than the ones in the south.) "Cruel" generally implies that something was done to cause pain intentionally. A cruel criticism would leave the author of a paper feeling worthless (much as a brutal criticism might), but a cruel criticism implies that the critique wanted to inflict pain and suffering on the author. Someone who deals out a cruel punishment delights in seeing the pain that results. Continuing on the Game of Thrones theme, Joffrey is a cruel character. Please feel free to message me if you have any other questions.

Usually, the phrase is "not my cup of tea." It is not as common to hear things like, "Dancing is my cup of tea." It's more common to hear "Dancing is not my cup of tea," meaning the speaker doesn't particularly enjoy dancing. "How come?" is slang meaning "Why?"

Everything started that night. I thought it was a typical day. My boyfriend just dumped me, and I was standing in the street, crying and begging him not to leave me. He was right! It's hard, to date a girl like me. I knew he would talk about breaking up sooner or later. But I couldn’t stop crying because I was left behind again. I didn’t want to be alone. But such is my life. I’m a dangerous human. People just come to pity me then leave me behind. “I’m sorry Anna. I thought your curse was not important to me. But I can't take it anymore. We do not match each other.” He left without looking back. It started to rain, and I had no umbrella. I arrived home soaking wet. I had no idea that the next few seconds would change my life forever. I was thinking about taking a shower and sleeping. I opened the front door. My mind was so tired. I couldn’t believe the thing I saw with my own eyes. There was a boy standing in the living-room! Well, he was kind of a boy, kind of a cat. This sounds like a really interesting story! It would be great to read more of it! In terms of grammatical mistakes, the main thing to help your writing is to make sure that the verb tenses match throughout. You used both present and past tense, so I just changed it all to past tense. If you'd rather choose present, then you can do that instead. Please feel free to message me with any other questions.

An echo is a reflection of a sound. See here: https://www.youtube.com/watch?v=HTZi1MzHSac. The sound of the trumpet echoes back to the trumpeter. In this sentence, an echo of the AIDS crisis is a reflection or repetition of the themes of mortality, loss, and death. During the AIDS crisis, these themes were discussed abundantly. Now, in AIDS activism there is an echo--a repetition--of these themes. "Loss" here includes death, but it also includes much more. It includes things like how to cope with the death of someone close to you, the loss of certain ways of living, and loss in general. I hope this helps. Feel free to direct message me with any other questions.