Where to start...perhaps with some empathy, I get it, trust me...I get it. I could tell you horror stories about getting banked, no fighter slots, nonsensical rated force management, and on and on. Bottomline brother, sometimes life is not fair.
I will not throw service in your face, I won't patronize you with the "satisfaction from the mission" speech, and I won't ignore the fact that you got a bad deal. Perhaps the best advice I can give you is to deal with it and move on. Not trying to tell you tough love is the answer, just saying that if you can't change it, do the best you can and move on so you can enjoy your life.
Having myself been a victim of some past rated force management issues (banking), I watched some of my friends go through some very destructive over a three year period. When I showed up to my non-flying job I was lucky enough to have a navigator as a squadron commander who listened to my sob story and gave me a few minutes to play the martyr. He understood my situation at the end of the meeting he told me I had two choices, I could wallow in it, or I could make the most of this assignment and forward. I went home that day and spent the weekend doing a little soul-searching. Ultimately, I decided to make the most of it and I while I wanted to be out flying, I actually enjoyed my banked job and it ended up opening a lot of doors for me down the road.
If there is one constant in the Air Force it is "things change". We probably change too much, but situations change, policies change, and people change. Don't let your bitterness prevent you from making a difference and being ready when things change.
I wish you the very best.