Finasteride just retains the hair you have for a while but even that doesn't work well after a while. You could try a hair system and stay on the Finasteride and see if you like the hair system. The goal is to maintain as much as possible until something better comes along.
Anyone in your family have hairloss? Maybe its due to the insulin resistance. Have you talked to your Dr.? It still looks good so i wouldn't worry about that.