How can i get rid of my severe stutter, or at the very least get it to a point where it doesn't interfere with me

How can i get rid of my severe stutter, or at the very least get it to a point where it doesn't interfere with me Have had this shit since i was in 3rd grade or something and im 18 now. Its so bad that I literally can not speak but when i talk to someone on the phone/facetime its meh. Its one of the reasons i have depression. im just sick of it because it just gets in the way of everything. I just want something that i can do in private by myself to improve because i really cant live like this and i feel like im at the edge because of this shit