I'm 18 Almost 19 and never had a period is that bad ? What kind of medication can fix harmonal balance, something that's makes me come on

You need to see a doctor.

Are you taking any medication? Certain meds can make it so you don't get a period. But if not I think you should see a doctor it could be just a simple hormonal issue but I would see a doctor soon.

At your age you should have had a period by now. What is your health and weight like? Are you underweight or overweight? Do you exercise to extremes? Are you anorexic?

In the end, you will have to see a doctor for hormonal tests to determine why you have not have a period if you are otherwise healthy.