I'm currently studying while working FT as well (testing in August). My advice is to first sit down and come up with a (realistic) plan. For me, that meant what I estimated I could get through in 1-3 hours per weekday, with some catch-up time on the weekends. I wrote out what chapters I wanted to cover for each week, and if I fell behind I just tried to use the weekends to get back on track. After this I saw I would need 6 months to prep ideally.
Second is to use Anki and get it on your phone as well! If I'm stuck in a conference call where I'm not needed, in line at the grocery store, whatever, I'm doing flash cards if I can.
Third is exercise and sleep. My 1 hour of working out is literally just as important as my 1 hour of studying content, or watching Khan Academy videos. It's a way to help prevent burnout (which is almost inevitable when studying for a longer period of time, which most people need if working FT), improves your mental acuity, AND gives you more Anki time to do flash cards in between sets or during cardio! =)
Let me know if you have any other questions, you've got this!
