I'm having the worst day. I'm so upset and depressed.

I'm having the worst day of my life. I'm so upset, depressed, and I really don't know why. I keep crying and I'm feeling the worst I've ever been in my entire life. I'm really scared right now. I really don't know if I can deal with this. I've been feeling so down for the last few days. I think I'm just feeling so down yesterday because the weather is so gloomy and it's raining. I don't know. I just have this feeling of emptiness and I don't know why. I'm really stressed and worried. I'm so anxious right now. I feel like I'm falling apart. I'm having a mental breakdown. I really don't know what else to do right now. I really need someone to talk to.