It really depends on you. There's not many hard and fast rules here. I'd recommend jarring the open tins and having as many open as you'd like. At 2-4 smokes a day with a few open, I would personally be worried about the tobacco drying further than I like it before I could smoke it all. But again, that's me personally. It took a couple of dried out tins for me to learn how much was too much.
When I was in your shoes, learning technique as well as what I like (more on that in a bit), I tried to keep it to 5 tins/jars in my rotation at a time. I had an English, vaper, codger, burley, and aromatic open in the rotation. Over time they changed, of course. Once I got the hang of smoking, I'd bump up one of those. Let me try all the codgers and matches! There's a million English blends, gotta try them all! I wouldn't recommend that route, I wouldn't do it like that again if I had to do it over.
All that to say you'll find your way. I wouldn't recommend going extreme in either direction right now. But otherwise, find your path.
When I was in your shoes, learning technique as well as what I like (more on that in a bit), I tried to keep it to 5 tins/jars in my rotation at a time. I had an English, vaper, codger, burley, and aromatic open in the rotation. Over time they changed, of course. Once I got the hang of smoking, I'd bump up one of those. Let me try all the codgers and matches! There's a million English blends, gotta try them all! I wouldn't recommend that route, I wouldn't do it like that again if I had to do it over.
All that to say you'll find your way. I wouldn't recommend going extreme in either direction right now. But otherwise, find your path.