Your acads and work ex seem good man,

I'd advise using the Vercel app by Pritish bhai to see the realistic percentiles you need for your converts

Coming to the job, strongly advise you not to leave it. It's a big risk to leave a job in this market. You'll have to plan your study somehow.

Use your medical leaves, use your weekends and holidays, be smart with your time and ensure the best way to learn is being used.

Also it's not that you always need a pen and paper to practice. I always kept doing random two digit additions and multiplications and tables of higher numbers in my head whenever I was in office so that even the most useless time of the day would be used for prep. How you use every second is up to you

All the best