That makes two of us...I feel like I have no idea what I'm doing.
Did you try downloading Self-Installer NRO and installing that one? It'll install Tinfoil to the home menu from where you can run it in full RAM mode.When I click "ok", it tells me that there is not enough memory to run tinfoil and use title override/install the NSP version.
When updating, make sure to get latest Hekate, Atmosphere and sigpatches. Latest supported firmware is 17.0.1,