Just repeating what I have already said privately, congratulations on receiving this scholarship; it's great news and a real honor for you. I know you had difficulty earlier in high school, and this just goes to show how a young man can bounce back, even in the face of terrible challenges, and reclaim his opportunities and his future. I'm really proud of you.
I wonder if I am right in detecting a certain hesitation and uncertainty in your message. If so, I want you to know that's entirely normal. As we move more into the adult world we begin to see that our lives really are in our own hands now. Important decisions aren't made for us any longer; they are in our hands. That's a daunting reality for any teenager to face.
I think you are doing really well in your approach to these things. You seem to be keenly in tune with who you are and what you want to make of your life. You realize already (some people never get this idea into their heads) that life isn't just about making money and "getting ahead". There is a whole world of thought and creative ideas out there, and it's great seeing you reach out to it to see what you can make of it, how you can contribute to it, and how other points of view can challenge you to test and revise your own ways of seeing and doing things.
At the age of 18 you still have plenty of time to try out different opportunities and decide what direction life will take the Theatrekid.
Enjoy the adventure and make the most of it. The memories you are building now will last all the rest of your life.