I haven't seen it asked but are you teaching yourself to fly? If so this sounds like just the kind of situation where an instructor takes over the plane and saves it from a crash. If you are leaning see if you can get some help. I have taught several to fly way back before buddy boxes and we just passed the transmitter back and forth. That worked just fine except that sometimes a new pilot refused to believe they were in trouble and wouldn't pass the transmitter back until it was just almost to low to save.

The statement about the ailerons and elevator being reversed also puzzles me. Were they at one time moving the right direction. I have seen ailerons reversed for first flights with predictable results but never heard of them self reversing.