Please please start with PRP treatment, it will give a stable base along with minoxidil.
Why the above? This is to stop the hair fall as soon as humanely possible, it's not the most healthy way, but it is efficient, and it works.
Second, while you are doing the above, eat, sleep and exercise properly, have a better mental calmness and lower stress as much as you can, try meditation?!
Wash your hair with scalpe plus shampoo, every two days, and only apply RO water everyday.
Last thing, your hair will grow back by like 10-15% not more than that, so dont expect it, but miracles do happen, but most importantly your hair quality will become better and it will take TIME (took me 7 years, started in college, now have 5 years of work ex)
THE ABOVE IS ALL PERSONAL EXPERIENCE.
Take biotin rich foods, biotin supplements,fish oils , multivitamin and increase your protein intake.. Before this get your blood test done and if you are facing major issues then consult doctor.
Hmm time to consult with a doctor at least. I will go on the weekend.