I think you should not smoke for the first time. This is because the action will provide a leeway for you to begin smoking regularly. You should resist the urge of trying out smoking and focus on your hobbies.
No, absolutely not. Tobacco products are the only legally available substances that are always harmful (even if only in small ways, at least at first) and never beneficial to the user when used exactly as intended. The only ones who "benefit" from their use are the tobacco producers and manufacturers and, I suppose you could say in a convoluted sense, those who provide health care and medications to those who have been harmed in big ways by "coffin nails."
Tobacco is the most addictive substance on the planet, bar none. And tobacco kills, slowly and painfully. I lost my mother to tobacco-caused lung cancer, and a very dear friend, too. It's an ugly way to die--the cancer consumes you from the inside. Mom weighed around 125lbs in healthier days; by the time she died, she weighed less than 85--she was basically skin and bones. The cancer had metastasized to her bones and her brain, and so she had a lot of pain, and was very confused. Please, don't take that first puff. It's just not worth it.