You ought to wait for a year before doing anything more drastic. You might want to even decrease your intake of minoxidil because 10 mg is potentially damaging. I had a racing heart with 5 mg/day.
0.5mg dutasteride daily
10mg oral minoxidil at night
5% topical minoxidil at night with light dermarolling
Needling every 7 days at 2.5mm
various supplements
I just added the topical minoxidil last month or thereabouts hoping it would give a boost of regrowth on my crown. The oral minoxidil seems to have helped diffuse thinning on the top of my head a little but done nothing for my crown.