While the pandemic has given us all a reality check, it has put a strain on the overall workout and practice routine of fighters and boxers. We know that many focus on boxing as a hobby, whereas others take it seriously as a profession. For professional boxers, this is especially important as the competition in the boxing industry is incredibly tough and, to compete with everyone, you need to be at the best of your game. With more time at home, it can be difficult to continue your training, so here are a few steps to keep you on your game, while practicing at home:
Meditation and Stretching
If you want to continue your fitness at home, motivation is very important, which is the reason you might want to start with a brief mediation period. This will help you stay focused and plan the strategy you will be implementing in the next few minutes. Next, begin your warm up with dynamic stretching. 
Punching Drill (time: 15 minutes)
Tip: take three combination practices for a day and do it on alternative days. Use a punching bag (if you have one) or otherwise, you can shadowbox.
This punching drill needs to be extensive, because within boxing, you will not only be practicing the techniques, but also the combinations. While practicing, start with a single jab and cross, then add the hook and eventually add the cross as well. Now that you have practiced your singles, you're ready for the combination.
Start with the jab-cross and keep going for two minutes, now add a hook and continue the session with a jab-cross hook. 
After this, you can go for the jab-jab-cross session which will be followed by the jab-hook-cross. Eventually, move to cross-hook-cross and hook-cross-hook. 
As you will continue doing each combination for straight two minutes you also need to go for a full run where you need to practice all combinations together. 
The last four minutes of the session can be spent on jab-cross-hook-cross and jab-cross-jab-cross-hook-hook because this is a lengthy combination and might take a lot of effort to practice.