Can't is not a word in my vocabulary.
perhaps "shouldn't" should be in your vocabulary.
I tend to think I can do anything too and I can do quite a bit ...eventually but you have to ask what is your time worth trying to learn a new trade by trail and error .
how much can / should your employers business suffer as you try to configure by trial and error and will there really be an savings when they pay you to spend 3-4 hours figuring out something most of us would bill 20 minutes to accomplish