I have a 2003 town and country, the front heater will not blow the back blower works fine. If the fan motor is gone, how hard is it to replace and can I do it myself?

It's hard to believe the blower motor is bad. Check all under-dash and under-hood fuses first. Here's how:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-3.html#post252145

Then, check the connections going to the motor for corrosion/tightness. Take your DMM and test for power. The problem could also be with the control switch. If you jump power to the motor, it will probably run.