I can appreciate your self education process young man. I give you a thumbs up for dealing with your life challenges. Couple suggestions for ya. Move those 2x4 stringers a little lower on your firewood bucking stand you posted to prevent hitting with your bar on a cut through.
Start wearing chaps when you are noodling in your videos. You scared the hell out of me when you posted the chap demonstration video on your channel. That could of got ugly but you kept that saw out front of you, so you used one of your 9 lives.
Expect to take some chit on this big boy thread right here. Your not on YouTube here little guy.
Again appreciate your drive in life with what you got going on. Keep it up there little buddy. Please use extreme caution if you are going to demo a brush cutter with a blade. It ain't stopping if it comes around on you. If will cut through your ankles. OK!!!!
I'm just an old man sharing my lawn LOL.