Artist Troubles

So, I'm an artist as probably you know on my profile. I've actually practiced art scince I was in eighth grade and found out I was quite good. I'm kinda stesssing out because I have showcase at my school and It displays some of my work. I'm kinda nervous because I kinda don't think that I didn't do my best but the project took two weeks! That is pretty short to develop a nice peice. I'm also having trouble with what to draw because I need fresh new ideas and I need some suggustions and then I will draw your ideas and post them up for you to see. so anybody who has fresh new ideas come forth because I am really stuck in a rut!