Life Sucks for the Most Part, You Can't Go Back to the Start

Have you ever felt that all your efforts are pointless? That's me from now until I graduate High School. My college counselor basically told me that I can't get into a really good college - I was hoping I at least had a chance at Ivy League or at least Georgetown. But, no. I was told my grades were 5 points lower than they needed to be even for Georgetown. I feel like I can get into any lesser college with ease, so I've decided I'm not going to bother trying for the next two years. I'm dropping another of my honors classes next year so I'll have even less work. The problem is that I didn't mind the work if I was working towards something, but with all hope eliminated there doesn't seem to be any reason.