How to deal with this?

I started my job life a few days back and the work is damn hectic. Working for more than 12 hours is not giving me any time to concentrate on my cfa prep… Though I started writing my mocks and the latest was schweser book 2 - test 2 -afternoon test where I scored 87% and in the earlier schweser tests kept scoring at around 70%. How’s my position? Are schweser test worth it? are these worth cfa level test? And working and preparing, its not happening. What shall I do?