sims 4 reset

so ive played ts4 for a while and started to buy a couple kits etc but found out about cracked. Downloaded the cracked version but to be honest, i probably didnt do it right and lots of problems are occurring because of that like the game not starting. to solve this im genuinely considering uninstalling everything and starting again but i fear there are some dlcs like seasons that i dont want to get rid of. Please can i have advice?