As far as lifting weights, since you're a guard you should focus mostly on developing explosiveness and your vertical (think squats, deadlifts, etc). Although it can be helpful (depending on your game), there isn't as much need for a lot of upper body mass.
I wouldn't recommend you follow the strategy of waiting to "do things with the ball". On the contrary, you should be in the gym on a daily basis, working on your shooting, passing, and ball-handling skills. Every good player I've ever played against got that way through endless hours on the court. Find someone experienced who can teach you the finer points of the game; this will save you a lot of time, and make you into a much better player. You may also want to do your conditioning work first, since practicing after lifting will teach you how to shoot when you are fatigued.
And like I said, work on your skills (especially shooting) every day until they become automatic.