E (Biggest string)
A (2nd Biggest)
D (3rd Biggest)
G (3rd Thinnest)
B (2nd Thinnest)
E (Thinnest string)
Secondly if you are still taking lessons don't write. It'll mess you up.
Just practice chords for a few months then get some scales then some songs then go to sweep arpegios and writing.
[FONT=Comic Sans MS]Everything is over rated except guitars drums basses and pianos.[/FONT]