How do I get them to help me?

I'm 13 and I've taken online surveys and done some research, and I think I'm depressed and I've also felt suicidal. But I'm waaay too scared of talking to my parents and I don't have an adult I can trust. My friends know I'm suicidal and that I'm going through a lot of really bad traumatic stuff right now, and they seem to care, but they don't DO anything about it. How do I get them to MAKE me get help or to tell an adult how I'm feeling since I can't do it myself?