I lost all of my notes after switching my icloud account, is there any way to get them back??

I decided to switch my icloud email to a more frequently used email. After doing this I went to check my notes (where I kept a lot of important things) and found that there was nothing there. It has been really stressing me out because I believe that when it asked if I wanted to delete the account from my phone, I said yes. I am really freaking out here, and could use some advice. I haven't tried much in fear of making it worse, so the sooner the advice, the better! Thank you so much for the help!