Can’t orgasm with new boyfriend

Hi all, I have been with my new boyfriend for around 2 months. Before this I was in a long term relationship and my ex was able to make me clitorally orgasm using hands/tongue regularly. In that past relationship, we invested in a vibrator and it got harder to orgasm without it after that (however he could still make it happen it just took longer).

Since that break up, I used the vibrator to pleasure myself. After I met my new boyfriend I ditched the vibrator to try and make myself “more sensitive” down there and have been able to make myself orgasm without it.

I have not been able to orgasm with him! We do foreplay and it feels good but I just can’t get myself to that peak! I am carrying guilt about it because he could make his previous partner orgasm too. He is being really lovely about it - but I really want it to happen!

Any tips to get past this barrier? I really want to be able to orgasm with him without the vibrator.

Thank you xx