It is NEVER too late to start changing. Do you think some people are just born with all the knowledge in the world? No, they learn it by pushing themselves, failing, and trying again. The only way you will become more confident around women is by surrounding yourself with them as often and possible and interacting with them as much as possible. Nobody on here can describe the process of becoming comfortable with women to you in enough detail to make you psychologically able to do so, in much the same way that nobody can describe the colour red to you if you've never actually seen it. The only way to get better is to go out and GAME.
You can start out by getting comfortable talking to women you are not attracted to. How about classmates who are intelligent but not particularly attractive to you? Talk to them after lectures. How about the check-out girls at shops? Attractive girls that are easy to talk to are hired guns at department stores. They have to be nice to you because they want you to buy from them. Go in and talk to them about your purchase, try out some c+f material, or try some DHV stories out on them, etc. They have to listen and can't just give you a bored look and walk away. However, if you get them interested in you and you start seeing IOIs, those are probably REAL, which means you know you're doing something right.
You have a social circle, so use it. Talk to your friend's female friends. Again, they have to give you more leeway as you cannot be instantly rude or cold to a friend without breaking social norms. Try and cultivate female friends using your social group, they are great to have around, especially when you're going out to clubs with them.
Finally, don't get too outcome oriented. Just because you're going out doesn't mean you HAVE TO get laid. Just because you're talking to a woman you find attractive doesn't mean you HAVE TO game her. First just work on being a fun, sociable, confident guy. Then you might find women are naturally interested in you and you'll hardly have to do any work at all to convince them that their nasal cavity is the perfect place for you to shoot your massive load
