As you do not give details where you are stuck I can only guess.
One option is you tried to save your lib assets to the system lib which is write protected for good reasons. (The next update would overwrite your changes) You need to make a personal library to hold your personal assets.
But you might be stuck at some other step. So here my tutorials:
**Hi there, I to am having great difficulty with creating footprint(s) and then the Symbol associated with it. ! It’s just too much for me!
I finally can do a schematic and then the PCB. I now come up with just one error that’s bogus after running ERC!!!
Tried to do Copy & Paste (Snipping) of doing a FootPrint but it just copied text and not the graphics as you see it.
This has caused me to say Goodbye to PCB Software!!
Thank you to all people on here that tried to help me!!