Mines triggered by people seeming disinterested in me or ignoring me.
@LyssSky03 I can relate. I have a boss who walks right by me and barely acknowledges me after working with her for 6 years. She'll happily chat with others but not me! It's nice to be noticed- it makes us human. I see you!
@KatieChicken
Thank you, and I see you too!! It's really hard when people don't appreciate you, and that's something that resonates with you deeply. Your boss isn't smart if they don't care about you!!
Different kind of things
people around me sometimes triggered me
People shouting or having a go at me,
Other people arguing, (extreme arguing)
My friends being depressed,
The thought of losing my friends,
There are probably more but that's all I can think of right now 
When i suspect someone doesnt like me.
My depression gets triggered by career change mental blocks. Feeling like there's a mountain in front of me and I don't know how to cross it, and I'm not getting support from friends. Everyone says I'll never make it and that I haven't got what it takes to achieve what I want. It's triggered by people not valuing me & what I do, just because it's something outside the box of their conventional lives. People around me are afraid of trying things outside their comfort zone, so they try and tear me down for wanting to start up something on my own. I start believing that I won't make it and that I'll hit a wall everywhere I turn, and then the depression sets in, making me unable to get things done in any case.
wow okay well, um i have alot...there's certain words or people, times of the day or year that remind me of things. theres places like bridges and like small gas stationy bathrooms...
Not telling a guy how I feel. He use to like me since a little after school started and I'm pretty sure he still likes me but he doesn't know I like him at all. And he never told me directly to my face but he kinda seemed like he liked me and then I heard him tell a friend. So that's how I know plus other little things, but I don't know what to do, everyone keeps sating talk to him, but I can't, and plz don't say yes u can. This is causing me to be depressed though cause I have strong feelings for this person.( Plz comment). Btw, its not like me and him are friends sooo....
Thinking about my futur, when i realize how lonely i am, when i see someone who is easily sociable and able to fit with others, when i see how i look in photographies, when i recall my regrets. Basically when i am in a situation where i can get bored and my mind will start to make me think about upsetting stuff... and then sometimes i randomly get depressed, like it's just the way i woke up :/
When I think how I'll never achieve my dreams and never amount to anything and nothing I do will drastically change the world and I'll soon be forgotten by the world once I die because everything is ultimately meaningless. Also how I think that everyone is prettier, smarter, funnier than me and I'll just never be good enough. Also knowing that my parents hate me and are dissapointed in me, and that my friends will move on from me because I'm easily replaceable. And that one day I'll die in like 80 years but in the mean time I have to spend money and work and fulfill societal pressures and live a boring life that I don't want, which is a waste of time because I really wish I was dead.