It's not complicated. You know what you can afford each month as a payment. I'm pretty sure you have some idea of what car/cars have your interest. Go to the dealer and compare the monthly pricing for both leasing/buying.
Everyone has their own story to tell. I leased my 2018 Wrangler for $320 a month/ 3 years. The same vehicle was around $500 for 5 years, if buying with the same money down and the discounts I mentioned previously.
Not to change the subject, but you must be getting along with your new boss, old by now. Good luck.