I dont drink often, need advice

As the title says I don’t drink too often. I know that about 4 shots gets me where I like, but that is frontloading. I stopped taking edibles for work reasons, but I still want to get a little of that feeling. Obviously I know that 4 shots gets me where I like, but only for a while, like 2 or 3 hours it seems, does anyone know how to SAFELY remain at the “correct” level?

I know you can’t just say “oh, X is right” because you dont know my tolerance, my size, my metabolism. I am kind of large, I have 10 shots total, I want as much fun for as many hours as I can get. I am simply asking for a rough estimate so that I can remain safe and prudent while also enjoying being the amount of drunk that I prefer being.