From the headlights, you should be going directly to a relay with the two hot headlight leads. The third headlight lead is the ground headlight lead
should go to ..... duh, ground. From the relay, the power comes from the fuse block.

For the turn signals, the feed goes thru the steering column turn switch and to the fuse block.

Somewhere, you have something wired wrong......how did you wire the turn signals?