Muscle recovery takes 48-72 hours. If the intensity is too high, 72 hours is not enough to recover. It is suggested that you can train once every 1-2 days, so that your muscles can get full rest and excessive recovery, and the developed muscles are of high quality.

You said that there is no problem of stiffness in daily practice, but the problem that muscles can't recover and nutrition can't keep up is a problem.