My hobby

I have many hobbies.
First, I like to play musical instruments. I can play guitar and the  piano. I started to learn playing piano when I was 6 year old. And I started to learn playing guitar when I was in the fifth grade. I like listening  music  when I was sad, if I listen to music, I`d become happy.
Second, I like to draw a picture. I learned drawing little bit. I think that  drawing  a picture is a nice hobby. I'll practice to draw a picture much.That's it.

My hobby

I have some hobbies.
Firstly, I like to play musical instruments. I can play the guitar and the piano. I started to learn to playing the piano when I was 6 years old. And I started to learn to playing the guitar when I was in the fifth grade. I like music because when I am sad, if I listen to it musuc, I become happy.
Secondly, I like to draw a picture. I have learnt to drawing only a little bit. I think drawing is a nice hobby. I'll practice to draw a picture much.That's it.

I am confused by the section highlighted in orange, it doesn't make sense. Just let me know what you're trying to say and I will correct it :)