After reading through the last ten pages, I'm glad I found this post. If you really want to be a good investor, you have to take a step back from everything. If you're trading your retirement account and you retire in 4 months, you're a fool. Period. But, if you say you're in it for the long term and you really believe this company has a great moat, no threat of competition, and the best CEO in the world, like most of us do, then dollar cost average. I get that people have real money on the line but you don't win by freaking out and selling at the first sight of non 52-week highs.
I rode TSLA from $32 to $163 and have been waiting patiently for the dip to buy back in. Good investors understand that a loss is only realized when you make it realized.