Semaglutide-Is it worth it?

I am researching this and wonder if taking the glp-1 is a nonstop thing. I see ppl talking about reducing the amount and how some people cannot get off. That's a bit scary. I have serious back pain and know for a fact the weight is making it worse. I wanted to try an 8 week course of treatment. If I stop will all the weight come back? I'm pretty good at eating healthy once I'm in the routine. And I need to cut out the alcohol but that's how I'm numbing my pain when meds don't help. I am so stuck and I need to do something ASAP. Any feedback...