Hey guys ! 
Just a small introduction about me. I've always been this happy go lucky guy and most of the problems I've faced in life I was able to tackle with confidence. Or I could give no shits about it. But recently, I went through a break up and it feels like my whole world fell apart. The person who I was before feels like he doesn't exist anymore. 
I'm very depressed and every little thing today makes me feel anxious. I feel like I can't trust anybody anymore. I've never felt like this before. I vent to my friends about this and I'm so happy that they just listen to my ramblings coz after that I have this momentary relief and confidence but it quickly fades away and I feel like shit again. 
My friend recommended this sub and told this a place where people share what they go through and help each other. I was hoping I could get some advice on how I can deal with this. Thank you guys. 

P.s I haven't sought any professional help so far.