I did the online dating thing a few years ago and "I feel your pain"... I did manage to meet and claim a wonderful woman. I also met more than one that would have probably been just fine, but not magical. Be very specific about kids, religion, education, smoking, drinking, and general personality from their profile in your searches. Personal finances were a big one for me, it is surprisingly easy to get a feel for that up front. Reach out to the ones that fit. Go on a first date and don't waste your time with a gal that doesn't strongly appeal to you. Meet at your favorite place to eat, if its not appealing to her then that is a first indication.
I work long hours and don't have a real social network outside work. I don't go to bars or church. Online dating was about the only way for me to meet women. Here in the DC metro area the pool is much larger and there are interest groups of many types I could participate in organically that would be different than the smaller towns I was living in out west. Groups where you could meet someone that shared a similar interest and enjoy the group in general at the same time.
I met plenty of women that liked me more than I liked them. Some I thought were interesting didn't respond to any messages after a first date. Don't take it personally.
Do not think with your dick!
Took me a couple years of seriously watching a couple different websites and texting many many women and buying dinner for a million first and only dates. But being extremely focused and serious it just effortlessly fell into place when I met "the one".
Hang in there and let me know if you want specific stories for entertainment.
Edit to add, if you do just want to think with your dick I think there are places for that. I am assuming you want to meet a keeper.