In my rv cabin I will have a small 4.6cubit foot refrigerator, a 5.0 small freezer, a small 2.5 gallon hot water heater, a small 5000btu a/c and 2 shop lights, I will have a 50amp hook-up, which breakers would I need to handle these things with a 50amp hook-up?

I have two 20a amp breakers I replaced recently due to tripping off. They continue to do the same with the new 20a breakers. Is it time to upgrade to a 30 amp or is there something wrong with the wiring or the pool pump which is what these breakers operate?

Can I use a 30 amp breaker instead of a 20 amp breaker? The breaker keeps tripping when I use the sweeper and the portable electric heater off the same outlet.