Hey mate,
Basically what you want to do is get those swimming pool noodles that they sell at wal mart. Tape those to your feet and jump into the deep end of the swimming pool. When you are underwater you can practice your grabs and tricks. This works, i have learned multiple butter tricks from doing this. alright I'm on the border between feeling good and feeling like shit I'm gonna lie on my friends couch and eat junk food and play skate 3 and maybe cry about my life idk about the last bit but I hope he lets me do the rest