If it says "end stops hit" it's telling you that the end stop switches are being triggered. Either:
1) Your printer is at the end stop and the switch is triggered
2) Your switch is wired backwards
3) Your switch pins are not connected to your switch
4) Your firmware is not set up for the way you have your end stops wired.
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On the extruder
1) do you have both of the +12 inputs wired up on the Ramps board?
2) is your +12 power supply on (I've made that mistake a lot ...)
3) Is the firmware set up to have an extruder on D10?
4) Is the thermistor set properly for the extruder?
5) Do you see a mintemp error?
6) If no mntemo, is it enabled? if both are no (or if 5 is no) check the thermistor wiring. (do you see a temp of 0C reported for the extruder?).
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Was this made from a kit? If so which one?