Welcome to our wonderful forum. You can read other introductions to get ideas for what to write in yours.
Some ideas for what you could tell us: your musical background, are you in a band, have you been writing music for years, what instruments do you play, who are your influences, obstacles to your musical activities....those kinds of things are all interesting to me.
Also important--what do you hope to get out of membership here and what do you expect to contribute?
I have found this to be my favorite songwriter forum, of those I have tried. I think you'll like it here.
Vicki