@op variance is a beast in large field mtts. if you catch a badrun and dont play like 100 a day, it can go on for years. seems the best thing for you now is to take a break. then after a few days start analyzing your game. watch some strategy vids, get your confidence back. then its just matter of try, try again.
only thing thats beats variance is volume (if your a winning player
)
GL!