Struggling intimacy

Lately I’ve been having some trouble of intimacy with my gf im a very high libido person and she isn’t so much so that was a problem for a long time being that i felt unsatisfied and well were in a ldr so its kinda hard to fulfill that area anyway so that’s not much of a concern anymore although i still think it probably is a cause for the next issue, im bad at sex now… I didn’t use to be before but it’s like ive lost my creativity and idk what to do because she doesn’t like a lot of the things i think of and now what i do seems rutinary because it’s what I know she likes and its safe to do but i just don’t feel good about it i feels boring and quick when we used to last for whole nights… idk what to do if anyone has any advice it would be very much appreciated