Is this (almost) it?

So I’m not sure I know what an orgasm feels like for me. My boyfriend fingers me and I believe he’s doing a great job. And then I start feeling really sexy and my heart beat down there. And it kinda gets warm and a good feeling. But then a good new pain (I’m still a virgin) starts to happen and my thighs get tense and start twitching and I want to just snap my thighs together. And I can’t hold them anymore but I don’t want to smash his arm, so I start making noises and then he stops and I slowly close my legs since the twitching and intense good pain had stopped and just curl up into a ball next to him?

Am I just stopping to early? There’s never that glory moment or release that’s I hear people talk about. I just kinda stop it and then it’s done. If so, how to I keep going without going insane or hurting myself or my boyfriend (by clapping my thighs on us lol)