Why are people always making fun of me for no reason?

If it's not strangers it's my family judging. Today I had an assignment for my class it was a poster about domestic violence and this older lady laughed at it. Another girl told her that this was a serious matter and it was not funny. People are always putting down my work and at this point, I believe it's because I'm the only black person in the class. I'm not the best because I'm new to this thing but it's just rude. There was this time last semester when a couple of students started making fun of my project but when someone else had something as “bad” as mine they didn't laugh or make jokes about it they just gave him advice to fix it. I showed my parents the business card that I did and all they had to say was “Does she like it”. My self-esteem is so low nowadays because people are always making fun of how I look, how I talk, how I take pictures, why I don't like pictures, and my every movement. I thought high school was the problem but it's just getting worse. I hate myself that bad because of the bs I've gone through. I know not a lot of people are like this but I just can't get a break. I have a lot more to say but I think I already said enough. Any advice would but so helpful thanks in advance.
Why are people always making fun of me for no reason?
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