I have really bad dreams which affect my mood the following day; I can be depressed, angry, have existential dread.
It’s frustrating but I also think a lot of it centres around people i know and people i used to know - so my brain is creating situations with people i don’t want to & won’t interact with ever again, just to make me feel bad.
My favourite dreams have just been me roaming around and exploring places - sometimes travelling by car or boat. Usually by myself. If i went running in the woods more, could i leverage my brain to give me more pleasant dreams like that?
Might you not be getting the causality reversed and it is actually your mood that is dictating the nature of your dreams. My guess would be you have some problems your subconscious is examining via dreams.