Honestly it's hard to arrange between this 2 job and trading for someone work at least 8 hours per day and controle his trading like me it can be crazy but with good management you can do it and in end of month you have 2 salary (you job salary and profit trading)
I think a single day job and trading bitcoin or altcoin is not such a difficult to mantain in a good way, i think we can give time to both. because trading bitcoin or any other altcoin is not such a difficult but we can manage them in a good way.