Help with wiring new lights in my garage

[awesometool]

If you pull 20amps thru the 14 wire it will heat up and it is a great way to start fires. A 15amp outlet will not accept a 12 gauge wire in the back stab holes for this reason. The other fixtures can attach to the same wire as the first fixture. I have seen melted oulets with 20amp breaker-14/2 wire-15 amp outlets.