Up to three negs per session, mostly two.
I scan all my rolls and pre-selected candidates for prints.
I don't do contact prints because I don't want to spend more time in the darkroom doing things other than the fun part, that is printing.
If your exposure is consistent (even consistently off, but in one direction 🙂 ), you'll soon get a hang of estimating the time for development, I've gotten down to 2 test prints to get a good result. The rest of the time I use for experimenting with different look.
Tip 1: Spend time developing your sense in judging negatives. The more preparation you can do before entering the darkroom will only make things easier when you're inside.
Tip 2: Learn to decide quickly if the negative is indeed workable within a session. If I sense that the negative won't give me a satisfactory result easily, I put it aside to work on it at a different session. This will minimize frustrating time such when you have 7 test prints hanging and none of them is to you liking. All the while I could have postponed that neg and work with the other ones.
Tip 3: This is a mental perspective thing, don't expect to come out with a masterpiece every time. Instead use a less than satisfactory print to come up with a plan for the next session. A good note taking process will help tremendously.
Tip 4: Use RC paper. I consider myself a printer in a modern age, where RC papers have improved and I'm free from the shackles of old cynical views that FB is always better. Anyways, it'll probably be a while before you can tackle an exhibition at the MoMA 😎, so have fun honing your printing skills by creating kick-butt RC prints.