NOOB with a TIMING light gun

okay ill go home and time it at 35 and mess with the air to fuel and idle screw...

one more thing. i think i missed a step.

is it necessary to have the car at TDC before doing the timing?

if so how do i get it to TDC ? just turn the ignition (turn over) till i get it close enough?

i think thats what i did wrong...