I accidentally deleted a checklist - HELP!

I deleted a checklist I had worked for days on. I had “shared” a link to it, then went and deleted the “shared” checklist but it deleted my main one also.

What can I do to get this back without manually typing it all again!!?? Thanks in advance!!

I was able to screenshot my checklist on my phone before it went away completely and I re-entered the data manually in a new checklist, but hopefully this thread can help others in the future somehow.