Just read everything that you can get your hands on, and get into as many hives as you can.
I'm in my 3rd winter now. Went from 2 hives in year 1, to 7 hives in year 2, to 18 hives in year 3. I've read everything I can get my hands on, and have reached out to every beekeeper who will give me a moment of their time or more. Get a MENTOR who will go through your hives with you. That's the absolute best way to learn. See if there is a local bee club you can join, and attend the meetings.
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