While I can't speak for you personally of course, it's important to remember that each persons metabolism intakes these different. When I was younger and KIVA was able to sell their 1,000mg chocolates I would have to have at least 3 to feel anything. Edibles have always been like this for me, regardless of whether they're homemade or dispensary for the decade+ I've been trying.

Granted, when I do it's just an extremely heavy couch-lock, but until that point there's nothing lol. For edibles there's no in between for me

Are you just taking pure thc distillate edibles? You could try RSO/FECO for a more full spectrum edible if so. I also find that CBN make me feel substantially more intoxicated than just thc by itself. I usually maintenance my tolerance by skipping edibles and more strictly smoking for sleep near bedtime. I've been able to keep it both high and stable for several months now.