How do I know if I am close hualed and how do I know how much to pull in my sail?

This may sound dumb but I am trying to get into sailing my laser more competitively and I always have trouble knowing if I am pointing close hualed. I try and head up but by the time I go past it my butt is in the water and I am getting windward heel. Even when I am close hauled by some miracle I cant figure out how much to sheet in the main sheet. I competitively sailed 420s for 4 years so I am used to just looking at the jib telltales but I feel like the ones on my main in my laser don't...

How do I know if I am close hualed and how do I know how much to pull in my sail?