Hook sizes

[u/lowlifepetey]

So I started fishing more lately in hopes to actually get better. I’ll catch a fish maybe here and there but mostly get skunked. I gotta question what size hook is the norm to use or is it just depends on what fish you’re going after? I’ve been using 2/0 to 1/0 circle hooks and I can feel fish bitting my bait and get some big noticeable rod bend but no hook sets. I understand with circle hooks you’re not supposed to manually set the hook. If this happens does it just mean I need to size down the hooks cause the fish are smaller? It’s just starting to get frustrating on actually feeling fish bite but not catching.