Hello everyone! I’m having trouble with doing the other two holes on the bowling ball. When I use To Sphere , I’m getting this result, the weird thing is that, following the lesson in doing the first hole, everything went well. Hope you guys can help me 
Just looks like its scaled up. Try just scaling it down to size.
Hmmm - sometimes the best thing is to start again from the beginning - not the whole ball, just that one hole. Compare the ones that worked with what you’re doing this time and make sure you didn’t miss a step. Sometimes it can be a program glitch that can disappear if you close and reopen the program. That happens a lot.
Thanks a lot for your advice, I’ll try from the beginning 
I managed to solve my problem, I’m posting the solution in case someone has the same issue.
I only had proportional editing enabled, it is the little blue dot I underlined in red in this image, just click on it and set it to disabled (it becomes a grey dot) and you should be fine. 
