Nexus isn't hard

Unless you’re server is entirely dead, you are able to get into a Nexus group right now. If you’re personally struggling I think you may not be fully aware of how the group building process works. I wrote a guide about it if this helps:

https://us.forums.blizzard.com/en/wow/t/how-to-get-a-dungeon-group-together-even-when-you-keep-getting-rejected/