I'm a 17-year-old girl from Italy and I've been struggling with depression and social anxiety for almost a year and a half; I haven't talked about this with anyone, not even my family.. I love my parents and siblings and we've got a quite good relationship but I just grew up hiding all my feelings, I've never told them about problems at school or with friends so I just don't feel like talking to them about what I'm going through right now. Furthermore, they wouldn't believe/understand me and they would say it's just a phase and that I'm overreacting. But it's not true. I feel deeply sad.. that kind of sadness that won't just go away. It's permanent, carving deep down in my bones.
I guess it all begun when I started to attend high school. I was in a class with new, unknown people and I didn't like even a single one of them because they were all superficial, snob and they excluded me since the first day(Here in Italy you attend the same class with the same people for 5 years). I bonded with two/three people but after Freshmen year they changed schools. I was feeling inappropriate and out of place but luckily I still got my best friend from kindergarten to cheer me up.
In summer 2015 I was having a lot of fun with her and thinking that that was the best time of my life, I finally felt truly happy after a long time. I couldn't even imagine what was about to happen. I was at a party with my best friend and we met a really cute and charming guy; since I've always been very impressionable I fell for him in an instant(clap clap

From then on I started to spiral down to depression. My whole world vision became black, my life was black, even my clothes were black. I used to often cry myself to sleep, I stopped smiling and making jokes with my two closest classmates, I found comfort in sad, meaningful songs that often lead me to tears. It started to get better when, unexpectedly, I met a guy on the bus. My feelings for him warmed my soul and I felt a mixture of happiness and excitement for the first time after many months, even though he probably didn't correspond.
When I thought I could finally get better and heal from all the pain I duly went back to my steps to just fall down in darkness again. It still happens today, and I don't know what to do anymore. Some days I'm okay, I feel strong and hopeful but then the next day or even just later in the same day I feel pain exploding inside my chest. I can barely breathe, my heart starts racing and I feel as if something heavy is weighing on my chest; it's horrible and the worst part of it is that I feel this weight constantly. Even when I don't notice, it's there. This leads me to strong mental breakdowns where I burst into tears and I just can't stop.
I started to self harm to distract myself from that pain because sometimes it is just unbearable, and even if it's just for a little time, I don't feel anything. I don't want to feel anything. I just want to disappear. I feel useless; I've made far more mistakes than right things in my life, I can't get anything done.. I'm probably a disappointment for my parents. And last but not least, I don't feel good with my body. I have neither self confidence nor self esteem, I feel ugly and I don't think I'll ever find someone who loves me the way I need to be loved.. I'm just trash.
I don't know what to do anymore. I'm tired of this situation, I truly want to feel better and be happy but I just can't.
Sorry if I wrote so much but I really needed to confide my feelings to someone, even if maybe nobody's gonna read it.