I just purchased a new thermostat and have no idea which wires go where. I have an orange, green, red & White wire, and the thermostat has Y,G,Rh,Rc & W. What do I do now

You might start with checking over here:
https://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-faq-northerheat-58313.html#post268211

This is from the heating & A/C forum under Home & Garden. If you have more specific questions, I would go there to ask, and I'd also state exactly what kind of thermostat you have, along with what type of heating/AC setup you have:
https://www.askmehelpdesk.com/heating-air-conditioning/