Hi all, I picked up an interest in stats after undergrad & got to take it further in grad school. I took two levels of social science stats, advanced analytics & TA’d for undergrad stats.

I haven’t ruled out getting an MS in stats but I guess I still have some imposter syndrome about my fluency & whether I could succeed coming from social sciences. I’m in no rush to go back to grad school, so in the meantime I’d like to shore up my fundamentals & do some self-teaching. My question to this community is: what topics are must-know to be successful in a future Stats grad program & if you have any good free references to pass along (books/youtube playlists) I’d be very appreciative. Currently reading Bayesian Statistics: The Fun Way lol. Thank you!