Do I need to stop smoking weed completely

So I've been a weed smoker for most of my life. I use to absolutely love it. It was just the best. Over the last couple of years it just hasn't been that great. Like yes I still get the high feeling but it also just makes me tired and lethargic AF. My plan was to just quit and be done with it. In the past I could spend up to 200 to 400 dollars smoking daily. Now I got it down to two smoking sessions a month spending around 60 a month which is fine. But still the tiredness that goes with it is almost unbearable. It puts me out I say for a week or two for recovery. And yes I've tried smoking lees, go with lower levels of THC combined with CBD. I guess I just need to quit. Is this just an age thing? Do I need to join a 12 step thing? Any advice or direction would be appreciated.