You have sold nothing along the way? Not saying your hodl philosophy is wrong however i can totally understand why someone would sell what they have mined. The story could end at much lower prices too. Again not saying that will happen but it could happen.
Not a penny of it. Selling to cover monthly mining expenses is normal, but if you are converting everything to fiat right away you are robbing yourself of so much money. Thats why Isay if you are selling it all off you are doing it wrong. Always mine for the future.
I used to sell everything to fiat too frequently, what a mistake that was. Missed out on so much profit.
Don't make the same mistakes I did!