Skateboarding Advice...?

Hi, I've been skateboarding for 4 years and can only ollie and manual... what are the easiest ways to learn new tricks (Kick flip, Pop-shovit, & Heel flip.) I have tried watching people and try to copy but that's hard. Also I ride enjoi now and from what i have seen from tier bag of suck video ( I own it and watch it every day.) Their pretty good. But im getting a new board soon and i want to know which board is best for Pop, Weight, and strength. Plan B, Enjoi, Or Almost.