How do I make penetration feel better in general?

I started my sex life recently, and the first few times obviously sucked, but even after doing it for 3 times I still can’t get pleasure from being penetrated. The only thing I really feel is a big pressure on my bladder, and it’s not a pleasant feeling if I’m being honest. I can mostly only orgasm using my vibrator while watching videos, and it feels great to the point I can have multiple orgasms.

Any girls have tips to make it feel better?