Why can’t i orgasm?

Okay ladies, i need some help with this one!

So i don’t usually self pleasure but on the rare occasion i do i always seem to have pretty good orgasms.

Usually when my partner does it they are nowhere near as big, but the last few times we’ve gotten together he’s been making me have massive orgasms, bigger than i’ve ever had before.

Since then, the next couple times i’ve pleasured myself i’ve been unable to reach anywhere near as big as an orgasm (it all builds up and then nothing) and i don’t understand why. my body still reacts like it normally does, i feel it coming, i speed up and get ready but then that’s it it’s all over.

Can someone help me out? has anyone gone through this? i don’t want to think that because my partner has unlocked some new other-worldly orgasm it’s made it impossible for me to even have a little one but that’s what it seems like.

Any tips?? help a girl out x