Help: My hairline worsened after 18 months on fin

Hi, as the title says: my hairline looks worse after 18 months of using Fin.

For the first 11 months I took 0.25 mg daily, and then I increased the dose to 0.5 mg daily, but I still don't see any improvement.

Should I wait a few more months?

I've been losing hair the last 4 o 5 years. My hair loss is slow but I can't stop it.

I think it's worth mentioning that I have hypothyroidism.