I need some advice from Air conditioner specialists, Gender not specific!!!!

So my house has a space pack AC in the attic, 2 years ago we had a new AC installed during the hottest month of summer, and last year i installed some airflow diverters in the form of PVC pipe that just shifted the flow of the sir from just out the primary hole to two holes so the rooms would maybe get cooler. Well the blower Motor just burned out, SOOOOO my question is two fold.... fold one, would diverters really cause the motor to work so much harder to burn out? and FOLD 2 what solutions are cheep to get better flow into every room so the house is cooler cause the previous owners were fucking cheep ass people, and my family is not 100% flush in cash..... please help me out......