Try some alternative treatments like Ayurveda, Yoga, Acupressure, etc. But first go to your doctor and provide him/her with exact details of both physical and mental problems you may be facing. Depression has many causes, it may be possible that you might have some physical condition which might be triggering your depression. Avoid taking medicines for healing depression as they are just like sleeping pills, their effect will be lost once you stop taking them.
Consultation with a Neurologist is absolutely the correct course of action. Expecting random people to diagnose your medical condition is unrealistic. Unfortunately, diagnosis and treatment of severe headache conditions can not be expected to respect your martial arts exam schedule. Rescheduling may be appropriate.
On a serious note, frankly you can not guarantee profit in a business. Market trends, which are dynamic, your own manugement acumen, effectively handling your finance, all contribute to the profitability in business. What is a roaring business today may totally become obsolete tomorrow due to various factors like technological advancement, change in lifestyle etc. If you remember, in the decades of 80’s and 90 ‘s STD/ ISD public call offices made brisk business. Where are they now.? At the start of the millennium, cyber cafes were mushrooming at every corner. Now they are shutting down. In the 50’s and 60’s Dhotis were doing good business for looms. Now no more. So there is nothing called a sustained profitability in any business