I drive occasionally with my car fully loaded or almost fully loaded with passengers (alot recently) and acceleration/handling is greatly compromised...Then after theyre out of the car i can drive by myself and have fun again I know this reasoning seems obvious but will this hurt my suspension (stock) in the long run?

 

aftermarket suspension

 

as long as you don't overload the car past its rated capacity (around 800lb total cargo, including driver), then it won't cause and damage to the frame or suspension...

might cause extra wear on the struts because the car weighs 4000lb instead of 3200, but unless you drive with a car full of people all the time, you won't affect the total life of the parts or anything.