Help ?

Hi everybody !
I don't know what I can write for my first "story" but I'll try to not( not to ) use a translator or others ( other)  things.
My name is Fanny ( and not Funny, haha), I'm 17 years old.
I learn ( have been learning) english since 7 years.. Yes, 7 years and I don't have a good level. I would like  * to * improve my english. I love this language and I think it's very important today to speak english. And I'm lost, I don't know what I can do to improve this.
At the moment, I try (am trying ) to read "Into the wild" bu (by) Jon Krakauer. It's a (little )bit difficult, I don't understand evrything but it's ok, I like it.
I try to write here, it's a good test to see if I take ( will have ) a lot of mistakes on a little ( short) "story".

Can you give me english youtube channels, please ? (On videogames or different topics like sciences, the word... )
Thank you.