I remember, 15 years back, copy and pasting 20 sheets from a stock screen into my tracker system, right pain in the ass I can tell you, every damn night, follow by checking charts of all flagged as interested, then all that broke over the 21ema or volume spikes and other criteria, those where the days.
May suck at daytrading compared to stock swing trading, but much prefer the hours being like 1 - 2 per day, stocks took up 12hours per day easy!