Please I'm 18 Years Old And I Never Had A

please I'm 18 years old and i never had a good relationship with my father still i turned 16 but still i have some pain inside me and because of that i can't open up to him. recently, he has been going through some stuff but he wants me to help him but i can't because he wants to touch my body to release his stress and i don't feel comfortable that so what do i do doctor?