Dude, don't worry about it so much. I never had a boyfriend 'til I was 17; it lasted all of three months. My next relationship wasn't until I was almost 21. He fell into my lap (not literally, of course) in the most unexpected fashion imaginable.
My advice? Go out and do what makes you happy. Give yourself the things in life that you can give yourself, the things that you know you deserve. Work toward what you know will make you happy--writing, a career, whatever--and along the way keep an open mind to whoever you meet. It'll happen when it happens. In the mean time, don't deprive yourself of other things you want just because you're too focused on a relationship or lack thereof.
some advice i have to offer you, if you wish me to.. stop looking. when you stop looking for someone, someone will see you. if you are looking for an older man and you live in North Carolina, somewhere near Garner i have a friend who is looking for someone, but i will have to tell you about him and i dont feel comfy telling all on here...what i can tell you is he turns 21 in january.