i haven’t been diagnosed with depression but i feel like i have it. i already have anxiety and it’s getting worse.

i’m constantly drowning in my own thoughts and i’m very insecure about myself. i never want to do anything that i used to love doing. i don’t really want to talk to anyone and i’m starting to push my friends away. i haven’t told either of my parents what’s going on because i’m scared of what they’ll say. i’ve self harmed before and i’ve been having suicidal thoughts. any advice ?