I've been going thru a bout of severe depression for last 4 years, and struggle with Anhedonia too. After years of near zero interest in things, I have to force myself to do things. My wife is good at pushing me (gently) to do things. I find that sometimes I actually get into the moment and actually enjoy it. I am on a new AD medication, so maybe it's helping somewhat. I guess my best advice is "fake it until you make it". Hang in there...