Hi Imtiaz,
Welcome, and do not be so modest! Try this idea-generating technique that has been passed down through the ages: talking. It might seem stupid, but it has worked well for me. Record your voice (on your computer, on a tape recorder, etc.) as you talk out loud about yourself. Start with the basics: your name, your age, where you live, where you were born, who you were born to (namely, your parents.) Then move on to what you do and what you like to do (it is funny how those two can be extremely different things!) This would include your work, your chores, your hobbies and interests, etc. After talking as suggested, you will probably think of something about yourself that you will want to convey to others. In summary: talk, then write down what you talked about. Remember that this technique is for getting ideas on paper, mind you, not necessarily for coming up with a final draft. We'll worry about that part later!
Hope this helps!
Ned Plimpton