How to enhance my training
So I'm 21, been training for about a year now at my local gym. I joined mostly on a whim, but now I'm hooked and want to see how far I can go with this. My gyms on the smaller side, so I want to supplement my training on my own. I have access to a gym and a boxing bag at home. My schedule is busy but manageable; I work mornings and train four to three days a week in classes.
What kinds of additional things should I incorporate on my own time to improve my technique and endurance. I already jog, but are there any specific drills, or should I just do what I do in class, but at home?