Open Dental help?

Hey guys, just gonna cut it short: Idk if I’m as dumb as two rocks but Open Dental is just not going through my brain as fast as I hoped… I am currently a front desk assistant and I would really really REALLY appreciate if someone can give me a solid website or free software or even YouTube vids to help me out… This is my 3rd day training and I still feel so freaking lost while others are passing me and asking questions about things that might as well be Chinese to me. Doesn’t help that I have 0 healthcare experience otherwise (I worked at a vet for a month).

TLDR: Help?