If your under 16 dont weight train, its bad for you.
If your over 16 then do it in the morning. A basic workout i used in the past was this.
Incline Dumbbell Press, Flat dumbbell press, Dumbbell flys,3 different types of tricep extension, it varies for me, i like to keep it fresh, and lots and lots of dips. Then a core workout, and end with 2-5 mile run.
upright row, bent over row, lat pulldown, lat raises, rear deltoid machine, 3 of the many types of bicep workouts, then i do legs, Core 2-5 mile run.
rinse and repeat.
I usually do this everyday and then go to fight training every night. Somedays like today im so damn tired though im not going to lift. So i basically use my weight training to supplement the fighting, not the other way around like many people do it.
Try to put 8-12 hours between fight training and weight training, and if your exhausted don' weight train one day to let your body recover, your body wont make good gains if you never give it a chance to recover.
There are no bad students, only bad teachers... until you teach at an inner city school.