Did you save off your links for the tutorials you watched etc? I've messed with SP in the past but never got comfortable with it so additional tutorials would be rad.
I would recommend this playlist to get started: https://www.youtube.com/watch?v=4BPKaHV7Q5U&list=PLaitaNxyd8...
and the help > tutorial section of sonic itself.
Those two are just amazing: https://youtu.be/a1RxpJkvqpY, https://youtu.be/GPan4gRSwZs