Wiring harnesses and connectors 13 wrangler unlimited sport

I just bought my first 2013 wrangler unlimited sport and my passenger side head light will sometimes not come on and my front driver turn signal does the same, I also found that my driver head light will sometimes not come on when I use my high beams. I have checked the connectors and found (on the turn signal) one bad wire right up to the connector and then I found (on both head lights) the connectors (not directly into the light but the connector behind that) are not staying secure. So I believe I have found the issues I just am not sure how to repair that. Any help?