I will suggest you to give the CSE 23 Pre paper as a mock test at home, until then prepare for it,
if you are able to score 75+
quit as you have a good chance to crack
else
make a 2 year plan to prepare for CSE(on weekends->10hr/day, weekdays->4hr)
Meanwhile CAT'23 cannot be done without having CSE'24 as opportunity cost,so won't suggest that
If you are in some IT position try getting a Production support project, they are easy peasy or switching to Salesforce Technology not much work required there.
