I agree - JFDI.
Think you are conflating two issues that are better considered separately.
1. You are not happy with current career choice.
2. You have a passion for aviation (or you feel that you do).
Aviation may or may not be the solution to your career dilemma. Personally I doubt it is. But you definitely shouldn't wait to get at least a taste of it. Gliding or microlights will get you airborne cheaply, and then you can ditch the flight sim and do it for real.
You may find the day job takes on new meaning when it has the purpose of funding your passion. But if you are bored at work its because your company isn't getting the best out of you - try looking for another position using the skills and experience that you have, rather than jumping ship. If that doesn't work then maybe, just maybe, have a look at aviation.
Is there a way to use architecture within an aviation context? BAA and other airport operators need lots of new build, maintenance and refurb work - someone has to do it for them (usually firms that specialise in airport contracts).
Oh, and if you are going to look for other work, learn how to use apostrophes correctly, please. I automatically file in the bin any application that has spelling or grammar errors.