Treat your day trading like a business operation

Successful trading is like running a business, and deserves to be treated in a serious business manner. 

DT is more labor intensive that does not require too much capital. your account balance is your working/operating capital. simple compounding does not work when business environment does not justify the expansion. frequently in trading, barriar for expansion is psychological. Easier for most human to handle 5 figure loss in a day, hard to handle 6 figure loss. machine can do better, but there is still the issue of market depth that can be saturated quickly for even a low 7 figure accounts.

A few examples are in order:

Just as many companies cannot reinvest all earnings without reducing ROI, and instead distributing CF in terms of dividend, there is a limit on growing the scale of trading business.

Another example for your RE landlords: your spanish landscaper comes to you with almost bare hands and minimal amounts of tools/capital. does he make 1% a day? yes, probably more. it is return to labor, not to capital.

Last example: there are actually lots of small HFT shops that make more than 1% everyday consistently, but they cannot get beyond low 7-figure in scale either before having too much market impact.

just my 2c