Not really sure where to start, need help..

BTW, to find the correct points in engine rotation to adjust the lash:
1. Rotate the engine CW and watch a valve pair for a given cylinder. Watch the exhaust valve movement, and when it starts to close, stop the engine rotation where it is almost closed and you see the intake valve of that pair starting to open. That is the overlap point. Mark the crankshaft pulley at that point.
2. Turn the engine so that the crankshaft pulley turns 1/2 turn CW from the overlap point and stop again. Adjust the exhaust valve lash.
3. The turn the engine another 3/4 turn CW and stop again. Adjust the intake valve lash.

Repeat this procedure for each valve pair for each cylinder. There are ways to shortcut this, but if you are new to the procedure and to engines, this will always work.