Should I do Fraxel Dual 1 session vs Secret RF w/PRP ( 3 treatments)?

There are numerous options beyond Fraxel and Secret RF to address the concerns you list. I recommend scheduling an in-person assessment with a board-certified dermatologist with expertise in laser skin rejuvenation procedures. In my practice, we have more than 50 lasers that allow us to customize treatments with the precision necessary to achieve an optimal result for every patient. With a personalized treatment plan, you should be able to achieve very good results. 

Both Fraxel and Secret will require multiple treatment sessions for optimal results. I would consider fractionated CO2 laser if you are the right skin type.