Frustrated and a little sad

I'm about to inject my 12th shot and I'm just feeling so frustrated with my body's response to these GLP meds. A little backstory - I was on Wegovy a couple years ago for eight months and lost a total of eight pounds. I didn't try very hard, didn't go to the gym, didn't track calories. I never felt any effects from the med; I just expected it to work magic and it didn't. I stopped taking it and gained those eight back and then ten more. Now I have been on Zepbound for three months and have lost 8.5 pounds only. I'm 5'3" and starting weight was 177, so I know I'm starting from a place of less to lose than some, but I am disappointed in the results. I've been doing everything right this time - I track my calories, I focus on protein, I go to the gym 5 times a week. But the weight is not coming off. The last two weeks I've lost nothing, even gained a little. I'm currently on 7.5mg. I just feel like I'm one of the few unlucky ones for whom the medication just does not work. I never feel any side effects, but I hardly feel any effects either. The only thing I can pinpoint is I can't eat as much, but that's wearing off as well. Anyone have similar experiences that want to give me pep talk, lol?