well if my biological father blocking me and not telling me my sister was born wasn't bad enough, my…

well if my biological father blocking me and not telling me my sister was born wasn't bad enough, my mom's husband of 4 months said they are cutting ties with me because I'm moving out. so they aren't gonna let me use the car I was suppose to get after the 1st of the year. she ain't gonna take me to my appointments nor my grandma take me all because I'm moving out but yet they wanted to take me.