How to manage my time by playing video game and studying?

Prioritize and make sure you do all of your homework and revision in chronological order. If you really have a problem with convincing yourself to do it, make a revision timetable and stick to it. Make sure you allocate a time slot where you can play your games too. Find a source of motivation and use your video gaming sessions as rewards for completing tasks/revision.

When you come home do your homework as soon as possible, get all the important things out the way first, then you are left with extra work that is voluntary then it is up to you how much time u spend playing games and how much doing extra work it don't really matter as the main work is out the way

The best thing to do is finish all your work first and play after. I know playing Minecraft and going onto forums is addicting but you will enjoy it more if you don't have other things that you need to do bothering you. If you do your homework first then Minecraft can act as a motivation for you to do it faster.