Number 3 is the only correct sentence.

Hi Tutu, You can say, “I want to learn and speak English.” We say “to” if we use the word “want” with a verb like “learn” or “speak”: I want to sing and dance! I hope this helps :)

My best friend’s name is Saeed Ullah. We were classmates in sixth and seventh grade. We sat on the same bench, so we gradually became friends, and now he is my best friend. I think our thinking and habits are similar up to some point. That's why we can spend more time together.

I'm thankful for my health. I'm still breathing. What can be better to be thankful for?

Inflation is a problem that has become more and more considerable in the last five years. It is impossible to be completely protected from inflation, but some actions can help you. If you have enough money, buying rentals could be a great possibility to save your money, because the houses never lost in the cost. - I'm not sure what to put here... "the houses never drop in price"? Buying stocks also can help you to save money, and even multiply it, but there are some risks, because the stocks could decrease. In my case I try to invest in myself, become more important for the companies, and get paid more.

I love your answer! Before I played a lot of video games, every day I loved playing with my friends, but now I like to invest in the stock market more, it is like a kind of video game, where the consequences for losing are much higher hahaha You can say "I loved playing" or "I enjoyed playing" but not both! And we put "more" at the end, like: "I enjoy dancing more" or "She likes writing more" Great job!

I like to play video games but I don't have free time for them. I heard about many video games and also watched their advertisements on social media but didn't play any of them. In college when I was free I played some video games but literally don't know their names. This is already really good! I did delete the two "I"s in the 2nd sentence to make it sound smoother, since you already said "I" in the beginning ("I heard..."). I did the same in the 3rd sentence. For "At college time" we would simply say "In college" or "When I was in college..." The only other thing you could change is "know" to "remember" ("... but I literally don't remember their names") since you are trying to think of their names. But great job! Keep up the good work :)

Yes, this is great. It makes sense and is well-written. Great work!