Rob,
Do something that you feel you would be good at, and that makes you happy. Life isn’t all about professional flying and certainly it isn’t a career for everybody for any number of reasons. Often people will embark on a life plan and then change it based on experience and circumstance. Successes and failures are just a part of normal life and they very rarely set anything in stone.
Airline pilot as an aspirational career has never been easy and the attrition rate has always been very high. That said, the current metamorphosis is very likely to make things even more difficult and less desirable in the future. Your future is yours alone and only you can make the decisions at each crossroads you come to.