Wow it's hard and finding out new things that I never did on paper or computer. Back in the days I did have a nice drawing pad. I was nice but try the iPad with a styles pen (cheep one)...
Things I found out I need to use or tricks to help me draw
1) my palm resting on the pad don't let me draw so ... Yeah I wearing a light glove so. My hand can rest on the iPad. It helps
2) find the program I like ... That's for free... Is a nice program and it has so much tools I love it sketchbookx
More to come working on it right now