Post your guns for free at Paintball-Guns. First of all take heart, we have all been there.
Paintball is a mental game as much as a physical one.
You don't have to outshoot a player you can outwit. Keep your eyes and ears open at all times. A good sense of situational awareness is a great asset to many players. Its a darned fact that when you focus your attention on any one area during a game, the paintball that eliminates you will come from another direction. Good players will use tactics you want want copy and bad players will make goofs you don't want to repeat.