Being fourteen years old, I understand that you probably don't fully understand how internet forums work yet. Here are some guidelines to help you out:
1. People expressing opinions does not mean they are being hostile towards you. It means they are interested in talking to you about your beliefs. Do not respond with "Leave with your negativity", "you are racist", or "read my post again".
2. Creating a post with the implicit message that black and black mixed raced people are physically more attractive than other races will result in accusations that you are racist. You can avoid these accusations by not being so elitist.
3. Becoming enraged will further encourage people to argue with you, and will make you appear unintelligent. Try to remain calm when trying to make a point.
4. Telling people to leave your thread will not work. It will only spur them on. Try not to tell people to GTFO.
5. Getting this angry over an internet discussion is likely to result in a brain aneurysm. Try to remain calm.