I started with one handed cuts, Charlier, Revolution, Scissor and Thumb, out of them all the thumb i found the most difficult to master.
I bought Genisis V1 and Andrei teaches these cuts really well and gives good tips for those with smaller hands, myself included!
As frustrating as it can be don't give up, you will get it eventually, if it was easy everyone would be doing it!. I'm still struggling with pressure fans!