Ouching after Fraxel laser

It's been a long time since I've been here. This is the only plastic surgery site I know of. So I'm posting my inquiry here. Please give me an answer. Yesterday, I had Fraxel laser treatment with a girl I know in the neighborhood. They said they would do it for cheap. My sister is the type of person who usually gets very strong lasers. I tried it twice and got the weakest laser. After my sister did it, I did it again, and yesterday there were two places that were bleeding. Red dots also appeared, and when I looked in the mirror today, there were oozing and hardened ooze. Today, there are more red dots. Am I wrong? What should I do? ㅠㅠ There are a lot of people like that in hospitals sometimes , and it will get better, so don't worry. ㅠㅠ