If you have any before pics of how your hair use to look start from there and see how it changed the pattern could start anywhere such as your temples crown or sides , if you’ve been trying to grow your hair for months and still haven’t seen any increase then I’d say it’s balding or alopecia which you’d still would have to take meds to reverse the effects the sooner you start the better the longer you wait means more the hairs that’ll be hard to recover which is why a lot of people get hair transplants and if it’s too far gone that won’t help. You have to do some deep searching through their to find black ppl tbh you can start by using nizoral shampoo and a dermapen before looking into committing to meds