lift weights, that's the best advice I can give you online. Then progressively, continue to learn and apply yourself to stop being nice; don't be a d!ck, but don't be nice b/c people don't deserve you man. I was a total pvssy all the way to highschool, then starting college, things changed after lifting weights and becoming stronger. Now I confront people if they disrespect me in any smallest ways men and women although people rarely do that b/c usually those who will not tolerate disrespect give off that vibe. Then you start to become little ****y and add in some humor there and start busting people. I am at that stage and those alone don't get you laid but def better than being nice pushover. Gota work on some kino and being more confident. good luck