Fuel leak
 

I was changing a fuel injector and now I have gas shooting out of what looks like the fuel rail ill add an image of where I think it's coming from. Any ideas for fixing it? I've tightened it as much as I could and am not a mechanic so that's as much as I could think to do.
https://cimg2.ibsrv.net/gimg/www.f15...52f1c63ee2.png

also, that's not from my truck I found it online but that's where it seems to be coming from.

All of the devices on the fuel rail, the injectors and FPR, just use o-rings to seal. Tightening more doesn't do anything. If you have a leak it means an o-ring is damaged or not properly seated.

Are you referring to the fuel pressure sensor gasket on the fuel rail .You have 2 fuel rails with one fitting going to fuel filter line . all injectors seal by orings , use new o rings and clean motor oil to seat them . Of course clean out all holes they go into . These are special orings available at box stores don't fail to use the new ones . I don't remember the gasket on sensor but if its orings get new ones for gasoline . Injectors should be changed out in sets , bad injectors can ruin your engine .
I'm not clear where your leak is .You phone cameras should give us your exact rail problem . But it sounds like the injector is not seated use motor oil .

I recently just replaced the injectors on my engine as well and had a similar issue. Fuel was shooting out the top of the injector where it mated with the fuel rail. I thought I had the injectors in there snug enough but after taking it all apart again I noticed the O-rings were damaged. I didn't lubricate the O-rings before putting them in and the dry rubbing ruined them causing the leak. Some new O-rings and a little gas as a lubricant on the o-rings and the injectors slid into the rail much more smoothly and no more leaking.