McShnutz hit it. Read, read, read. YouTube leaves a lot to be desired, too many fools claiming they are a "Master" grower, then show tall spindly, nasty plants that even a novice could beat. The search function can be your friend. You can blow thru hours searching, looking at pics, and reading. If in doubt, ask a question, but have a little thick skin, some on here can be a bit brutal. You'll soon find out what works for you, what works for others, may not work in your situation. Don't get discouraged, some people do. It won't take long, and you'll have the confidence to get a decent crop in.
Keep at it, and you'll be rewarded in the end, it's not hard, some people make it way harder than it really is.