Some bigger images would help.
Watch the wheels, make sure the spoke tension is correct. Learn to "ride light", and this means to learn to absorb some of the hits with your leg muscles and kind of "unload" the bike on rough surfaces.
Pick your path for smooth pavement, where ever possible.
If you do develop wheel issues, get a set of Velocity Deep V's or Weinmann DP18's. I prefer the Velocity wheels, they are much better quality, but the Weinmann's are going to be $50 or more less expensive for a set. DT Swiss Spokes and a minimum of 32 spoke wheels.