Prius Prime Suspension Wearing Out Quickly

Hi Prius Chat Team,

I'm a new member, but I've been a lurker for the past 6 years. I am an owner of a 2018 Prius Prime and I just had to replace my suspension for a second time since I bought the car. The car has 138,000 km on it. The rear shock absorbers were replaced at 41,000 km, and the front and rears were just replaced again at 138,000 km the other day. I find they seem to wear out quite quickly. To give you an idea of my driving style; I am 200 lbs, travel solo 90% of the time, 10% with my wife who is also similar weight. I travel on pavement about 90% of the time, with 5% on graded gravel roads, and 5% on not very good gravel roads. I have used my car about 20-25 times for transporting 400-600lbs of materials from home depot, but otherwise the car is empty.

I'd like to hear about your experience with your 4th gen Prius (regular or Prime).