a little sad and angry

Today I have some free time. I am usually busy in daily life. But today I am a little sad, because this afternoon I wanted to download a google chrome and this app was so slow to run. I wasted some time which is important for me. So I am very angry. Then I wanted to do my math homework. Even worse, (I looked many sight at mooc, then I find I still cant finish it). It is really a bad afternoon. Maybe everyone will experience that.

<em>Can you describe what I put in parenthesis in a different way? We all have terrible days sometimes, tomorrow will be better. </em>