Accidentally deleted emails

I have a billion emails not opened. Went to delete specific ones by selecting all to delete ex: all GNC emails only. It highlighted them first in grey then I clicked on one and they all finally turned blue. Pressed the trash icon like I always do and nothing was happening. I tried this with different emails. When I looked at my inbox number after I tried a few separate ones and it said then only 50 emails. I’m like wtf happened?? I never highlighted my whole inbox and pressed delete cause that would have taken me two days to check and highlight. So I googled how to retrieve them from the trash. When I got to the section to choose which emails I want to retrieve there was a start and stop date calendar so I picked a few months worth but then eventually picked one months worth. But both selections only gave me 50 emails back on whatever number I chose from the calendar. Ex: 1/1-1/31 only gave me 50 emails back from only 1/1.  But I need multiple multiple emails back cause I don’t know which dates I received my important ones only who they were from. So I it gave me a list of all the trash emails and who there from but I would never have the time to go through all of them to pick. I basically want to retrieve thousands from November 23’- present. Or can I only do it 50 at a time?? Help please!