SELL OR BUY
Buy whenever possible, regardless of the price.
Sell only when you absolutely must, regardless of the price.
I am following this advice since several years and it served me very well so far. (TBH honest you and Bob beeing happy about buying something nice from BTC at non-optimal prices serve as kind of model for me.)
I am generally happy with how things worked out for me, though I wonder if there is any advice on what alcoholic beverage is suitable to flush down the pain and misery felt from having to sell at 16k to pay bills?
Recently I started to consider switching from prosecco and wine to shoving ethanol soaked tampons up my rear cavity to numb that voice in my head telling me that the BTC I just sold could be hundreds of thousands in a few years..