I was in a similar situation. I decided to go out and do day game on my own. After a couple of months I started meeting people that I liked and would hang out with. This includes girls and fellow day gamers.

The best way to improve? You need to get out the house and talk to people. This is not an overnight process though, you need to put in the hours. A side effect of this is that conversing with and meeting people becomes easier the more comfortable you are with it all.