Why am I so unbelievably shit at this game?

I keep trying but I invariably make a mistake, and as soon as the speed of the falling blocks picks up, I lose the rag and fuck everything up. My high score is only about 4,000 and I was lucky to get it.

So it is a source of constant annoyance to me that Alec Horan has the current high score of 30,000. How in the name of flying fuck does anyone score 30,000 at Tetris? It's not like Simon where the same sequence is copied over and over so you only need to be a sad bastard with hours of free time to become champion.

If anyone knows of any hints, tips, tricks, cheats etc for this bastard game, please tell me, because it's doing my head in. If you want to take the piss while you're at it, feel free.