Try standing and working at your kitchen counter, usually 36+",and your bathroom counter, usually 30"+. Then try sitting at them, too.
That will give you an idea of what works best for you.
I'm 5'9", and use a stool, too.
My main work area is my garage central 4'X8' work table, which is 30" tall. I both sit and stand there, and it's fine. And there's storage underneath.
I do have 37" high perimeter wook benches, and have my drill press table at 42", where my fly tying vise is clamped.
So I have different heights for different things, but I can always raise stuff on my 30" table to work on it comforably.
Maybe have two heights. A 30" desktop height area, and a 36" work bench area, for both sitting and standing. I find I use both a lot.
Grinders, vises, and benchtop machines are usually designed for 36" counters, so you're not stooped when you work at them.
Whatever you decide, make sure you have lots of lighting. Working in poor lighting is like being blind. And dust collection, so your work area, and your lungs, don't wind up coated with sawdust.