Stick to your gut! I’m a new reloader. I’ve watched 100s of YouTube videos. They showed me how to do some things I wasn’t comfortable doing on my own. I read the Hornady book, I read the ABCs of Reloading, I downloaded copies of every load manual I can find. YouTube has a lot of junk out there...and until I read a few manuals, I didn’t know which was which. The videos demo how to load....but they don’t teach you what to load. They helped to explain my equipment to me, but the books and manuals taught me reloading safety. They taught me to respect the process. They taught me the importance of building up loads by starting low and increasing powders, or changing COL in steps, checking for signs of over pressure, overcrimping, handling high primers, and a myriad of other things that remind me that even after 7 months of regular reloading, I’m still in Kindergarten.
I would be remiss if I didn’t mention that this forum, and the collective you, have been excellent resources, mentors, professors, and punishers along the way. I remember my first @$$ chewing for something stupid I did...which taught me to me much more cautious, and to pay closer attention to every detail, as there are too many steps that can go wrong, and I don’t want to take one. But it also taught me to respect the caliber of the people posting in this place.