I don't know how else to describe it. I'll start vaping, there's like 20-30 minutes of comeup, 5-30 minutes of euphoria, then everything just feels dull? like hazy and blah. If I vape less, there's less of the 'blah' feeling, but then reality feels harsh and stark.
i get the same thing with edibles generally, 1h comeup, 30-60 minutes of bliss, then 2-3 hrs of gray
It sounds like you have access to different strains, so try mixing them up.
I have a lower THC sativa for mornings, which gets me thru the day. I have a hybrid for around 5pm, which is like having a few beers after work. Then I have a strong indica for bedtime.
I've been on prescription opiates for years for a bunch of conditions, and while I do get a buzz from it, it's not what I'm chasing and it settles quickly.
Also, worth considering how you smoke it. I vape in the morning and in the evening, and then a pipe before bed. Each hits differently, and works well for me. Might work for you too.