Help me for the love of god

Okkk, so I masterbate, used to use fingers, but now I have extensions and didnt wanna cut myself down there so now I use a vibrator..Anyway..

No matter what, I get really close to this really intense feeling and it feels great..but almost like too intense and I jerk away

I dont mean to do it, it just kind of happens.

It’s kind of like going up the hill and I’m so close but I cant quite reach the top??

Please for the love of god someone give me some advice..but please dont just say “well dont move away then” cus if i could stop myself i would..

I’ve never had an orgasm dammit and I wanna reach the top of the hill.