You don’t need to buy more books (unless you want to.) You can always go to the library.
My library has had drive-thru pick-up for almost a year, but they’re now open for patrons to browse the stacks for thirty minutes at a time. I entered my library for the first time since March of 2020, and it was marvelous. Walking among the books is a lot different than placing books on hold through the website, although I’m grateful I have been able to do that.
Libraries are amazing places, and all readers should support theirs because there is no way we could afford to buy all the books we want to read.