I assume you mean Semaglutide by GLP1, you do not need to use code words here. If I knew what dose of that you were on it might help explain your current lack of response.
I had next to no response to my first few doses of semaglutide, but then had super horrible nausea as soon as I tried going above 0.5mg per week. I had way less nausea from tirzepatide, but needed much higher doses than I expected to suppress appetite.
Everyones' responses to these medications are a bit different and the same persons response can be unexpectedly different to different GLP's. One dose is not close to enough to have any idea of how well it will work for you. If you started at 1mg and increase every 4 weeks it could be a few months before you get a response or it could be after your next dose.
Presumably the aim is to reduce excess weight and keep it off long term, this is a lifelong issue for most people who need these medications. Despite not yet being officially approved, everything so far from the research says Reta is the most effective weight loss drug in history ( that does not kill you like DNP ), but it does not work overnight. The normal dosing schedule takes several months to slowly build up to the standard maximum dose of 12mg.
The reason for starting at low doses and slowly increasing is to prevent horrible side effects that last a week, as the drug has such a long half life. So you will usually get some milder side effects as you increase doses slowly rather than being hit like a ton of bricks by vomiting that lasts a week, or like someone on this forum who had non stop hiccoughs for 2 or 3 weeks.