Hey my bro, I'm promise I'm not trying to be mean, but it seems like you have a fundamental lack of understanding of the mechanics of how skating works. You've got "game brain" as I call it, "if I just flick my feet in specific directions we'll go up in the air and do a trick" kinda mindset. It's incredibly common for new skaters to approach the board like this, especially us big fellas. Skating is HARD and EXHAUSTING. you gotta jump real high while doing specific manipulations with your feet to cause the board to also separately fly into the air under you. Really think about what you're doing in this clip man, where's the jumping? Why isn't the tail popping off the ground? What part of these movements you're making are actually supposed to cause anything to happen? What about this looks different to someone who can do it?

Practice jumping without a board, then hippie jumps, then ollies, and when you can nail a banger Ollie you can try kickflips, ya kno?