I’d recommend one or two days of bot play. Play something like 50 games on 9x9 to get a feel for some of the basic patterns that you need to watch out for. I like bots for this because you can spam out games quickly, without waiting for opponents to move or looking for games. Just roll back to back bot games until you can beat something like GnuGo with a 2 or 3 stone handicap. It’s how I learned Go, the first time I picked it up.
I wouldn’t recommend finding a bot that lets you undo moves, just lose quickly and start a new game. Your goal should be to familiarize yourself with how to play, again, and you can’t undo moves in a game.
Once that starts to feel comfortable, play people! People definitely play differently from bots, and you can learn a lot from playing people close to your level that you couldn’t learn from playing handicap games against bots that probably outrank you by 10+ stones. You’ll probably lose a bunch of games against people, as well, when you start playing. The 19x19 board (which I’d recommend!) is very different from a 9x9, and an even game is different than just trying to link stones in a 9x9 handicap game. You’ll have a basic grasp for things like whether to worry about an atari near the edge of the board, and how to make eyes, though, which will help immensely. That sort of sense is gained through repetition, which can absolutely be gained by spamming out 50 bot games to get your Go brain working again.