Psychological Strength Training

[BlindingLaser]

Is there any way to become more comfortable with higher swings? Does the brain slowly build up a tolerance for it? I've progressed over the past year from micro-limits all the way up to 15/30 and 20/40. Obviously, a $1,000 swing a year ago would have been mind-boggling to me, but a $6,000+ swing is, while not peanuts, easily conceivable within the realm of possibility for me, now. Clearly, comfort level with swings is partially a function of bankroll...but is there a way to build yourself to become more comfortable with large swings, besides just continuing to go through them?