Is it better to get help now as a minor or wait until I turn 18 in August?

17F, 5’1, 78 pounds

I need help i know I need help. I came off drugs couple months ago. I stayed off them. But I’m having a hard time with eating. It was hard before but since I’m not using it’s worse. I know it’s bad and I need help, I’m feeling dizzy a lot of the time and I’m fucking freezing. I’m losing weight again when before I was between 81-85 for months, almost a year. But I don’t know if it’s going to be better for me to go now while I’m still 17 or I should wait until I’m 18 in August. Like is there a difference in what happens?

Also like how do I make an appointment for this? Do I just call a clinic and say I’m having a hard time eating? I don’t have a regular doctor I see. I only went to the one hospital in Philly for coming off stuff.

I’m just really hoping someone can tell me what I should do.