Finasteride

[Gmn]

Hello guys ive had an hair transplant 3 years ago just my hairline i was pretty happy with the results but i reffused to take finasteride now after 3 years my non transplanted hair its getting thinner and thinner specially the mid scalp, i dont really know what to do, i was thinking to go for another hair transplant but idk should i just hope on finasteride first? Or it is to late