Startup disk missing
I accidentally deleted partition Macintosh hd-data and now my computer won’t startup. It doesn’t give me an option for startup disk. I am not very tech savvy but am able to click a mouse and type. Lol. Any help is appreciated. (My Mac was super slow in everything and I only use a few items such as messages, calendar, adobe, chrome)
iMac (24-inch, M1, 2021, 2 ports)