If I see the picture correctly, the top seems to be ok and the back/bottom is thinning out. This is a hard palce for a partial to correct. To be on the positive side I have seem many men cutting their hair regulary on the top and almost brush cut sides and back. You might be able to pull that off. When cut short and maybe a little concealler might do the trick. Just my opinion. Hope I opened up a route for you to try. Good luck