Hypertension in 20s, not overweight or a smoker

I'm a 26 year old African-American male that's been diagnosed with hypertension recently and put on hydrochlorothiazide.

I'm about 5'9 and weigh around 150, so I'm not overweight at all, and I don't smoke. I do drink, not everyday but rather heavily on the weekend. The diuretic seems to be very effective at reducing my blood pressue, but it does bother me that I have to take meds for it at such a young age. Does the fact that diuretics are so effective mean I'm "salt-sensitive"? Lik e many African-Americans I do have a family history of hypertension (both of my parents have it, and neither is obese). Other than meds, anything I can do to control my blood pressure?

Like I said, weight isn't an issue and I don't smoke. I suppose I could try to limit my salt intake, though that's pretty difficult (seems like almost everything is high in salt). Not sure if the alcohol makes a difference. Any other suggestions? Am I kind of screwed over by my genes?