To be brutally honest, seeing you credit HarryTalks in your mods.toml makes me want to tell you to throw it out and start from a better tutorial.
Please provide your debug.log for more info on why things are going wrong, or if you are willing to take my advice to restart with a better tutorial, Cadiboo is making a text-based tutorial that in my opinion is a ton much better than most YouTube tutorials and I've only just skimmed it.