It's a good method, I like the way you do your  mining "business"

In my case I make 4 withdraws per month on Nicehash
I sell the part to pay for electricity, usually is 15% to 20%

And the remaining amount of BTC I sell 50% and send 50% to my hodl wallet (this wallet I'm hodling for at least 50k USD)

In times of bearmarket I usually only sell to pay electricity and hodl the total remaining balance