i have thoughts about k****** myself because of body dysmorphia

i have body dysmorphia, and cant help but obsess over my looks. i cant stop looking in mirrors or other reflective surfaces to see if i look good. im not bullied, but some people say ugly as shit randomly, others say im attractive. i cant tell which one is real because when someone calls me attractive, I think it's a joke, and vice versa, which is a contributing factor to my mental health condition. i just need to know how to stop caring about it, and what to do to help it. its getting to a point where its affecting my daily life, and thoughts about suicide.