You know, not to say anything at all bad about IWF or the pursuit of CRPGs over and above "bored" games or even worse youthful activities, but. . .
You really outta lay off a bit if it is affecting your studies. "Health teacher" sounds like you're in High School. If you don't have a clue yet, our academic society will decide, by the time you are 17, what the fate of your life and career are going to look like, at least generally, by determining if you will make it to the *reverent pause* ALMIGHTY COLLEGE OF YOUR CHOICE. You owe it to yourself to do things right early.
Sorry to preach - and, of course, only you can truly evaluate your situation.
Much to learn you still have.
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