Sex thoughts

I want to enjoy sex more. I kind of don’t really currently. My thoughts are

– I won’t get what I want anyway so why bother
– Sex takes a lot of energy
– I don’t feel like it
– I’ve gained weight
– He’ll see [x part of my body]
– I don’t look good

Also I’ve noticed that my mind wanders off during sex to things in the past that I regret or am embarrassed about. Which is not really a surprise because that’s what it does during not-sex times lol.

Can you please coach me on this?