I have tried bits and pieces of EVERYTHING. I have ZERO clue what I am doing and am not sure what I have done so far. I need help with downloading the drivers and setting up my N300 for Ubuntu. Please help.
I regret that there is no way to get your
0846:9020 device reliably working. In fact, I actually own one and have tried many times and in many ways to get it to work properly. This thread explains the process and details the several failures: https://ubuntuforums.org/showthread.php?t=2264020
I suggest that you look instead for any one of several fully supported devices. Although there are many others, I have and can recommend the TP-Link TL-WN722N.