Can you help me? Please.

Since I was 14ish I had depression and I don't know what to do. Every day I thinking how would life be better without me. When I was 15 I went to therapy and got pills and nothing change and I tried a lot kinds of pills but nothing works. 3 years later(now) I get a lot of anxiety and a lot of suicidal thoughts. I tried to tell my mom but she doesn't believe me and I can't tell my dad because I'm scared of him. I tried to ask for help from every adult I could ask and they done nothing. So I try here at least. can you help me?