You sound like forced by your mind corruption to be worried
about things that are never a real matter for you at all.
What about your ability of studying, also lost like almost everyone here?
Doomers are always exposed to overeating, fapping and vices of any kind, being vidya the less nocive one. Working them out is the first they'd do if they were to reduce anxiety or grief.
Fasting and cold water are said to be nice methods against fap, but who knows.