Any tips to fix hair thinning?

I'm currently 26 years old. I don't smoke, drink or take any drugs. I exercise 5 days a week and I have a healthy diet. I'm suspecting that it could be genetic.

I've already started today to take natural approaches by microneedling (0.5mm), jamaican caster oil, shea butter jamaican shampoo and conditioner.

Is minoxidil the way to go if this doesn't help?