How Come?

How come, no matter the friends I have with me, I feel so dreadfully alone?

How come, no matter how many supportive people are with me, I feel suffocated?

How come, no matter how many times they repeat it, I never believe the good things said about me? 

How come, no matter how hard I try, I just can't love myself?

How come, no matter the happy act I play full-time, I never feel real happiness? 

How come, no matter the task, I only ever see myself failing?