Like how you have divided your stock portfolio into Buy and Hold (Investing) and Variable Trade (Trading). Also agree with having an investing goal and sticking to it. This relieves some of the emotion out of trading. It can be very tempting to continue to hold a stock you are trading as it goes up (or down). However it is at your peril. If the thesis that got you into a stock holds then consider buying more if its going down or staying in if it's going up. If the thesis has changed, time to move on.

GREAT advice to not buy cryptos with borrowed money or on credit. Could force you to have to sell at a bad time.