Hello, i've got a question: i do let's say masturbate almost every day (all days mostly) and also do watch porn with it (not like real one) once a day. anyway, i was wondering if this can have any side effects, mostly doing it since pandemic?

Too much of a 'good' thing is not necessarily a good thing. At your age watching porn is not advisable as it might increase your threshold of arousal and you might require progressively more porn for arousal. same can be true of daily masturbation. Suggest you find something productive to do: e.g.volunteer, play a sport, do social work or any other thing you like. You can do it! Good luck