Is My Hair Shedding Back-to-Back After 1.5 Years on Finasteride?

Hair in January after about 8 months of finasteride.

I think I had my peak hair recovery back in may/Early June

but its been shedding downhill from there

Here are pics from July:

August looked like an improvement from july

But September destroyed all the August progress and pushed me to the state of my hair in January

My regimen is 1 mg of fin daily since April 2024, I think I could’ve been considered a strong responder of fin from April 2024-April 2025 but the gains have since reversed somewhat.

Update after more than a year lol. Still 0.5 mg fin mono therapy