Exploring masturbation

So I had sex once back in January but we stopped after a few strokes because I bled and it didn’t really feel good but it didn’t hurt? I want to learn more about what I like but as of right now I only focus on rubbing the clit. I’ve tried a dildo off amazon (it was broken so there’s no point) but even then I was kind of nervous to put it in because I thought it was too thick and it wouldn’t easily glide in even tho I was very wet. Any tips to ease or help?