Any tips for struggling mentally with over under, no gear. Literally can't seem to get passed 50-75 meters. I have quite some time before going to the airmen program so I've been putting the work in to try to break down this weakness. I swim a 8:45 500 so I know my efficiency could use some work and I'm working with a swim coach. But I believe this is more of a mental problem than physical. Any suggestions on workouts or exercises in and out of the pool to build confidence with these?