Im just gonna go out on a limb and guess you were at JST. Going from JST to an 11 approach is doable but you have to have some natural abilities... But still, you came from JST and picked F11... Can you honestly say that you didn't get a little greedy and chased the money?
The FAA didn't do you any favors but that's the government, shit is a mess. Honestly it can be done but you have to have a great training program, trainers that care about you and again definitely some natural abilities.
I'm not going to get into which branch of military has the best controllers or whether CTI or OTS is better than military. I've seen garbage controllers from each walk of life. I'm just saying you ranking F11 was definitely not a smart choice. I'm not trying to be a dick and your situation is unfortunate... Good luck to you.