Realize about your way of working: you have got the lyrics saved in the text processor, the lyrics and the rhythmical accompaniment in a music sheet done and printed by Musictime.

Surely in your school there is a CD recorder program as Nero or Easy Creator

You have your work ready and the Mp3 file saved in your folder.

It only lasts to create a title page for your album. Think about copyright if you want to sell it!!