Resin call for slightly different building techniques too. Your normal plastic glue will have no effect whatsoever on resin. You'll need epoxy or superglue. Wash the parts in soapy water to remove the film or mold-release material that was used during the manufacturing process. Prime your model before getting on with the 'normal' paint job.
Parts that are bent can easily be put back into their right shape by using warm water.
Cleaning up and sanding resin parts release dust that is HIGHLY dangerous to your lungs. Wear a mask.