Learning Second Language

Learning a second language is hard for adults.
I actually started studying English when I was 33.
Though I have been studying still until now, I feel I can't break through the beginner level for at the moment.
It seems that it becomes harder to learn new languages in terms of function in our brain when we get older.
Nevertheless, I will keep on studying.

I see in one of the comments you said that you are now 20....which is younger than 33. were you 13 when you started?
For what it's worth while there are some mistakes. Written at least you are understandable and and have a decent pool of vocab. 
If this is a beginner level then as a Japanese learner I'm like 20 levels below beginner. 

I can't speak to your speaking and listening skills. But written at least. Unless you find it motivating to assume the worse. Don't be so hard on your self your doing great. 

I wish I could explain the corrections for you. But it's one of the things as someone who is not a teacher I know what's wrong. But I'm not sure who to explain why.