Music helped me a lot during my teenage ages, Iit was difficult to me to feel comfortable in a new class with new classmates and many things about my body that I didn't like. Music helped me a lot during my teenage ages, it was difficult to me to feel comfortable in a new class with new classmates and many things about my body that I didn't like.

Good English just added an extra capital.

Music helped me a lot during my teenage ages, Iyears, because it was difficult tofor me to feel comfortable in a new class with new classmates and many things about my body that I didn't like. Music helped me a lot during my teenage years, because it was difficult for me to feel comfortable in a new class with new classmates and many things about my body that I didn't like.

maybe consider something like: ...to feel comfortable being in a new class and noticing many things about my body...

Music helped me a lot during my teenage ageyears, Iut was difficult tofor me to feel comfortable in a new class with new classmates and many things about my body that I didn't like. Music helped me a lot during my teenage years, ut was difficult for me to feel comfortable in a new class with new classmates and many things about my body that I didn't like.

Then, during weekends, I loved to listen CD's in my room, sing and forget everything around me. Then during weekends, I loved to listen CD's in my room, sing and forget everything around me.

Remove the comma after then

TBack then, during weekends, I loved to listen CD's in my room, sing and forget everything around me. Back then, during weekends, I loved to listen CD's in my room, sing and forget everything around me.

"then" can be a bit ambiguous at times, but "back then" always refers to a past era

Then, during weekends, I loved to listen to CD's in my room, sing and forget everything around me. Then, during weekends, I loved to listen to CD's in my room, sing and forget everything around me.

Music as a rRefuge Music as a Refuge

title case

It's really hard tofor me to choosinge a favourite song because there are lots of them and there are none of themt many at the same time. It's really hard for me to choose a favourite song because there are lots of them and there are not many at the same time.

Really close on the first bit, on the second correction I assumed you wanted to say that you do not have many songs to choose a favourite from.

It's really hard to me choosing a favourite song because there are lots of them and there are none of them at the same time. It's really hard to me choosing a favourite song because there are lots of them and there are none of them at the same time.

also: it's really hard for me to choose a favourite/favorite song...

It's really hard tofor me to choosinge a favourite song because there are lots of them and there are none of them at the same time. It's really hard for me to choose a favourite song because there are lots of them and there are none of them at the same time.

So, connected to this memory, I remember a song called "Volver a disfrutar" from the spanish band "El canto del loco". So connected to this memory, I remember a song called "Volver a disfrutar" from the spanish band "El canto del loco".

Same here

So, connected to this memory, I remember a song called "Volver a dDisfrutar" from the spanish band "El cCanto del lLoco". So, connected to this memory, I remember a song called "Volver a Disfrutar" from the spanish band "El Canto del Loco".

tried to add in standard capitalization conventions

So, connected to this memory, I remember a song called "Volver a disfrutar" from the spanish band "El canto del loco". So, connected to this memory, I remember a song called "Volver a disfrutar" from the spanish band "El canto del loco".

It was a super energetic song that I enjoyed a lot and that made me feel really happy in thate moment. It was a super energetic song that I enjoyed a lot and that made me feel really happy in the moment.

"I enjoyed a lot and made me" sounds to me like "I enjoyed a lot" and "I made me" "I enjoyed a lot and that made me" sounds like "I enjoyed a lot" and "the song made me"