I`m 15 years old and i`m trying to learn this song but it`s very difficult could you give me some tips to play it better?

I reccomend that you cut off any low notes that repeat, or try something a little easier. How long have you been playng?

It doesnt matter how old you are... Im 15 too and i can play the same thing as some 30 year olds.... yet some 30 year olds can play the same things that i played when i was 5. Perhaps refer to your skill/grade instead of your age... because age means nothing.
Jen