1997 Dodge Dakota freeze frame/headlight issues

I am a Single mom trying to fix my son’s truck without paying a mechanic and here are the freed frame results:DTCFRZF P0133, FUELSYS1 CL, FUELSYS1 N/A, LOAD PCT 4.7, EIL 198, SHRRFT1 -1.6, LONGFT1 1.55, MAP 4.8, RPM 640, VSS 0

I also having headlight issues where I was having to prop the dimmer switch to high beam to get them to work, today they started working suddenly without doing that on both low and high beam briefly, they also flash at times. Wiring short somewhere?