Help!

Ok so i have never orgasmed before. I have tried master bating but it never really felt like amazing, either there was no feeling or it was kinda uncomfortable. Then, I was using my vibrating nuetrogina face brush thing ( but it doesn’t have the attachment so there are no bristles) to master bate and it felt really good and at one point i felt like each individual muscle tense up one at a time and i got scared and stopped. Was that like the beginning of an orgasm and also how can i make it feel good normally and just orgasm.