I have a suggestion for you. Believe it or not it's very effective.
Boil one glass of water in a pot. Then add dried nettle leafs and dried Epilobium parviflorum(has green leafs and a few pink flowers). Let it brew for 5 minutes then filter it. Add one glass of tap water and slowly rinse it through your hair. Leave it, you don't have to shampoo it.
After a few days of using this, you will realize your scalp sebum is reducing gradually. At the same time your hair loss will most likely stop Try and see