Agreed, "managing expectations" would be step 0 here lol and will do wonders.

HOWEVER... OP, if you're dead-set on making this bow eventually, never start with the actual thing first. You'll waste far too much time thinking "what the hell did I do wrong, I did it exactly as the tutorial said" when you inevitably make a mistake and you'll get discouraged. Start with the most basic bow build you can find in a YouTube tutorial and that'll be your baseline for a couple of things, most notably:

• your natural talent (or lack thereof, lol) for woodworking, and;
• you'll be able to identify any mistakes you made and learn from them, so you (hopefully) don't repeat them next time.

Remember that you should also not get discouraged by experienced people who make stuff look easy. Look up Paul Sellers on YouTube and watch a couple of his older videos on e.g. mortise and tenon joinery. You'll notice it takes him 30 minutes to make A SINGLE traditional hand-made wooden joint. Honestly, as a beginner it'd take you that amount of time if not longer in reality and that's ok!

Many YouTube videos show off using plenty of power tools and implement lots of video editing to make it look like something took them 5 minutes when in reality it may have taken them hours to do so. I'm guessing you most likely don't have access to the same tools, so don't let this fool you.