You need to work slowly and sort out one or two things at a time. Start with rig tension. After checking the stays are equal tighten the rig until it becomes hard to rotate (by hand) the mast to 95 degrees

Next is the outhaul on the boom.

Point your mast spanner (rotator) at the side stays and pull your downhaul, traveller and mainsheet on as hard as you can. Now pull the outhaul on as hard as you can. Tie it off there and until your on top of everything else just leave it.

Jib traveller takes a bit of playing. Most people sent it for upwind andleave i there (kite is more important down wind) and on modern courses we don't do much reaching. The basic setting is achieved by cranking main sheet, traveller and jib sheet and the adjusting the jib traveller so that when you pinch up the windward wind indicators on the jib lift just before the ones on the main.

Reaching on and F18 is quite difficult as the boats and sails have evolved away from that point of sail. You need to really drive the boat. If it is being flightly pull the centreboards up a bit. You also need to be be able to properly control the main without moving too much sheet. This is achieved by using the traveller.as a gear stick and the main as an accelerator. When viewed from behind your main sheet should rarely be more than 20 degrees of vertical.