<human>: Can you summarize the given text in a few sentences?

So these past few days have been a struggle because of my (male, 15) grades in school. I have been trying to put up with my parent's ( age 40) verbal abuse due to these "bad grades". They keep on saying how I'll grow up to be nothing and live in the streets and even when I do my best to bring home good grades, they still antagonize me.

In the beginning of school, I was very positive and wanted to work for a good grades because this was my most important year but unfortunately, all that negativity went away went my parents started to gather these verbal insults. At this moment, I'd rather be outside until midnight or locked up in my room than be around them, but of course, I can't hide forever so I try my best to ignore them because whenever I have a conversation with me, its always about school and how my grades are not going up. The negativity is getting to me and I've realized that my thoughts are becoming very pessimistic. Its very hard to handle because my parents are threatening to remove my outdoor plans which will result. Maybe this problem will be fixed over time but at this point, I just want to give up and avoid talking to them altogether. Thanks reddit for helping me vent but does anyone know how to manage or better my train of thoughts into more of optimistic outlook?:,)
<bot>: Parents are negative and are making me pessimistic which is affecting my school work. Does any know how to manage this or should I just wait for the problem to solve itself?