This very nearly spiralled out of control at the start of my PhD. Doesn’t sound as extreme as you so my advice probably won’t be of much help. Collecting small victories helped.
My experience in grad school (materials engineering) was very different. Within the sphere of people who attended my Ph.D. program, academic success seemed very poorly correlated with intelligence. Maybe a difference in the school’s or department’s culture.
This very nearly spiralled out of control at the start of my PhD. Doesn’t sound as extreme as you so my advice probably won’t be of much help. Collecting small victories helped.
My experience in grad school (materials engineering) was very different. Within the sphere of people who attended my Ph.D. program, academic success seemed very poorly correlated with intelligence. Maybe a difference in the school’s or department’s culture.