Started reta at .5 since tirz didn't sit well with me. Slowly worked my way to 2mg without any side effects. Some people respond at .5, others get rough reactions. Makes sense to ease in gradually to sidestep that, unless you already know your body needs a much higher amount before GLP1 does...
Sounds like exactly the profile this medication targets, discipline clearly isn't the issue but your body's biology keeps fighting back regardless, and noticing appetite suppression kick in within days is honestly a great early indicator.
Reta works differently compared to other glp-1s, from what I've seen, people combining them typically lean on reta to drive the fat loss and tirz to keep appetite in check.