Does anyone have any practical experience or expert knowledge regarding reducing the frequency of nightmares?

My entire sentient life I have been prone to nightmares, usually at least one a week. I am in my 30s now and "eh it'll probably sort itself out" has proven an ineffective strategy.

There is obviously the kumbaya "mediate and reduce your stress" stuff but obviously I live in the real world where time that there is any useful level of executive function is pretty full.

So aside from general "wellness" stuff are there specific interventions for making sleeping brains be less garbage reliably? Missing sleep/fitfull sleep blows.