Action creates motivation, rather than the reverse. Just take the first few steps. Goals? Nice to have, but you don't need them either (from a fellow Nihingo student).
I started on numbers since I need that when buying stuff and when the locals says the numbers it still hard to understand. Seems like I need hundred of hours exposure to it before it becomes easy.
https://www.youtube.com/watch?v=AO0GTMgqPI8