There’s a reason not just anyone can grow a beard like mine. It takes a unique combination of laziness and having skin that is easily irritated by shaving.
Tips for people trying to grow beards
Don’t decide you can’t grow a good beard and shave after three weeks. Your beard isn’t full enough because it’s only been three weeks. Give it two months before you decide that.
The itchy period you get sometime around week two or three will pass in a couple days. If you can’t handle two or three days of itching then you shouldn’t have a beard. Beards aren’t for babies.
You might be tempted to shave your neck and shape your beard to keep it from getting too wild. Don’t. Why are you even growing a beard if you’re still going to shave? That’s like quitting your job, but continuing to work for free anyway.