stay positive
im one of the more positive people on this forum, but here is my advice..
i am in the same situation almost, except i am 21 and have my instrument rating already... keep ur business job for now and train at a small flight school in your spare time, that way, you will be able to keep a paycheck and fly instrad of dropping everything for flying.... that paycheck and experience will prove invaluable in the long run, trust me. at 27, i think you are still young enough to do this, but financially it doesnt make sense, especially with your degree.. i am 21 and have a job lined up flying a Hawker for someone who is paying for my ratings, so things are a little different.. i want an airline job someday, but now isnt the time to be dropping my life for that...
in summary, find a small flight school, build some time while still keeping your job, and things will work out in the long run.. besides, you never know who you might meet at a small flight school.. i just happened to meet a guy who is neighbors with someone from Delta AirElite