What should I do after feeling vibrations??

Ok, so I tried wild a couple of times, before going to sleep, just to get used to feeling itches and stuff, just to practice yk, and in the morning, I sometimes, now its been a couple of times, feel some vibrations and this sort of hard to explain feeling, I just overthink or don't know how to properly react and always end up messing it up, PLEASE, I need some tips what should I do next