Our sex lives, like all the parts of our lives, go through many phases. Allow other people their own paths. Allow yourself your own path. Sexual and orgasmic energy travel on the breath. Breathing techniques can make sex so much more powerful and satisfying.
Rhythmic breathing is the best thing since the invention of the vibrator.
But you have a choice, just like you do with what you eat. There is junk sex, health sex, and gourmet sex. Try to make self-loving choices, but if you don't, then don't beat yourself up. Eat well, exercise, and pamper your body with long baths and obscenely expensive toiletries.