Today is the first day of the rest of your life. Right?

I'm getting closer and closer to the day. To the day that I have worked towards for 4 years of my life. But, as the specail date approaches, I find myself more scared of it than excited. It's graduation. I mean don't get me wrong, knowing that I will never return to high school is such an amazing feeling, but I know that so much more than just high school is going to disappear from my life. So much responsibilty comes with graduating. I don't feel like I am not responsible now, but now there is no more excuses. There will be no back up of high school. I can literally spend my time however I like. I wont have to answer to anyone as to why I didn't go to class and I will no longer be "pushed" to do well. I'm scared of knowing that I have to pay rent and I have to pay bills, and I have to finally take full care of myself. I have to make good decisions, theres no more room for screw ups, and no one will be angry at me if I do screw up. If theres one thing I have learned in life, it is that nothing is permanet. And to be honest, I'm a little afraid of the changes graduating might bring. I don't think I'm ready for a huge change like that. I have always fallen back on school to be the permanet, unchanging part of my life. Even though it's not fun, and I pretty much hate the atmostphere, there is so much to it that makes me content. Granite Hills feels like my home. I have moved so many times, but through all of the tears and all of the hardships, I end up back at Granite Hills. What happens when I don't have that backdrop?
On a more positive note, I guess I just have to take things one step at a time like I have always tried to do. I will have to realize that being a child is no longer going to be accepted, and that I must grow up and start focusing on who I want to be one day. I will take this day with pride, and know that there is better coming up for me beyond high school. Realizing that change isn't always bad and might not break me down, and knowing that I have many great supportive people in my life should make it easier. I suppose I should put all of my anxiety's aside and move on.