Lets say you learn a valuable lesson here
time estimations for work and knowing when you have to ask help (or admit you don't know it to well) the last one is even more importand in a job situation
In my opinion you started to late (or asked help to late for your problem)
also if you build the device in real (not only in a simulation) you will learn valuable lessons in how to stuff up the thing in construction (imediatly you lern how to avoid that and if you stuff it up you learn even more of understanding the design in finding the fault)
lot's of designers do a nice job on the computer but don't anticipate what could be the problems when you have to make it
To your problem now
what is the frequency your running this schematic?
a transformer has a certain delayed response so if the frequency is to high for the used transformer (transformer dependend) than this could be the situation if the transformer responce is going up when the steering goes already down than it will kill your output total
Robert-Jan