'Povo" plenty of good advice in here. You don't "need" ATPL exams to fly a plane, any plane, most of it you will memory dump straight after passing anyway (it would be interesting to know how many could walk in & pass them now after say 3 yrs away from it) but you need them if you want to go to the top, well I should say to the end, I wouldn't consider flying a 'BUS' the top, wrong choice of words there. Like others have said, continue studying, I had a 10 yr break between CPL & ATPL, sheeeez felt like I was studying to be a rocket scientist
They are the biggest waste of time man ever invented but unless you want to stay poor jump thru the hoops & get on with life
CW