Is it normal to feel blue due to circumstances like this?

I have an array of issues. First and foremost I'm 25 and I haven't had sex in 5 years. When I think about it I feel very sad and horrible. I feel like a complete loser. I've gone to bars only to find that the women I were interested in have boyfriends or just are not interested. It hurts. The feeling of rejection overpowers me and completely takes over my mind because it has happened so much that I feel cynical about having luck with finding some female companions to chill with. It has made me not feel good within and I really feel like I'm in a deep dark hole. It's just not a good feeling. Even online (SKOUT) I am not having luck. No women seem to want to talk to me. Is it because I haven't taken a picture of myself with my shirt off? Well I don't have abs to show off but I do have biceps. What is it about me?! I'm a real cool guy but now I'm starting to feel a tad bit insecure....

As if things aren't bad enough my living situation sucks. I live with a "stepfather" I do not talk to and strongly dislike. He has cheated on my mom and has won her hand in marriage. They've been married for 3 years so far. I think to myself how does a good looking guy like with so much credentials (graduated from college, made the Dean's List) get the short end of the stick and have so much trouble in life while those who have done others wrong (my stepfather) seem to get away with things....The thought irks me. The man walks around the house in his boxers. It's really a sucky situation.

Lastly I'm very artistic...The problem is that I'm a perfectionist and I am such a perfectionist that I haven't completed anything...I've wasted lots of canvases in the process and I feel terrible...I only want things perfect!!! I've drawn this waterfall scene so many times. I think I'm a little crazy. HELP!!!!!