Boyfriend can’t cum from oral or handjobs

My boyfriend loves getting head and asks for it all the time. I’m happy to do it! But he can’t cum from just my mouth or hand :( so I get tired of course I try not to feel bad bc he says he has never came from blowjobs.

Any tips that are unique that could help him cum? Or will he just be one of those guys that will just only be able to cum from sex.

If he can’t, that’s fine. Everyone’s bodies are different. I just want to surprise him and blow his mind. And I’m pretty sure he’s never came from head, or it’s super rare.

I’ve tried a lot of the typical tips