Drinking molasses and a bunch of vitamins seems like one of the many gimmicky "remedies" on the internet that are in reality lies. The follicles in your hair are perhaps ageing faster than the average person. It's just a few grey strands of hair at the end of the day. Even though it won't reverse the colour of your hairs, take some time to take care of yourself. Sleep at least 7-8 hours per night, and make it a habit. Eat healthy, take occasional breaks from the screen, etc. You'll feel a lot better.