I am a math grad student who recently decided to do a research study in statistics in Winter 2023. I took AP Stats in high school over ten years ago. I have a solid background in pure math and have always loved deriving everything from the ground up and I want to do the same thing with statistics.
I am currently taking a course in linear regression and statistical data analysis. I can provide course summaries in an edit/comments if it's helpful, but it's worth noting that we're using R for pretty much everything.
I am looking for solid resources for someone in my position (textbooks, papers...etc). I want a deeper understanding of statistics that factors in theory and solid examples, while starting from the ground up. I am unfamiliar with solid statistics literature the way that I am already with mathematics, so any resources that people are willing to provide are appreciated. The more conceptual the resource is, the better.