Don't let a "flashy" lifestyle fool you..
A lot of people who claim to be so"sophisticated" are walking around with their pockets and purses on full "rabbit ears" or they place their faith and ideals in materialistic things that absolutely mean nothing in the grand scheme of things...
As a fellow USPS worker, we are doing better then most, plus you actually have your stuff together. You are not a statistic and going to school and working( the same myself ) shows that you have vision and a direction, that makes any woman alone moist and ready for action...
It's all about mentality my dude...
If she can't see you are doing your thing ( especially for a 22 year old) then let her fly away and keep doing you...
Also no need for you to have your girl do recon, just be on your grown man/gentlemen tip and approach with calmness, assertiveness and warmth. Showing her you are not scared, will definately turn her more and probably make her down for the pound(if by the time you read this, you haven't already got in the skins)...
Good Luck