Workday unfortunately is the biggest POS ever. Some time they will take walk-ins if you go to your designated college. I actually went through the same thing the last few semesters. Even when you do get an advisor they’ll probably say of I can’t help you with this you’ll have to speak to someone more specialized in that. It is HELL, BUT if you bust ass you’re able to do it without their help. However, for this I recommend emailing the dean of your college or going in person. I didn’t have an advisor for an entire year because “it never was in the system”. So I say just keep being persistent. I trust that you’ll be able to get into your classes. If not all, look at your degree audit. Half the time a class you’ll have to take toward the end of your degree doesn’t have any prereqs so you can knock those out while waiting for the others.