Okay, sorry if the answer is obvious, im still learning >.<
I followed the guide "Setting up 9.0 - 9.2 N3DS/XL for CFW, including EmuNAND, Coldboot, CIA Installer"
I now have a working boot selection screen (Luma3ds to EmuNand and HBL to Sysnand),
and I updated my emunand to the latest FW (For...