ever read back on things you have wrote and wonder how you got thought it feeling that back?

I was reading though stuff I had writing to help me get though the hard times and reading it all back makes my heart ache and my brain wonder how on earth I got thought it' one quote I read was the worst pain for a girl is when she smiles just to keep the tears from falling and sleeps so she doesn't have to think' reading this back I didn't realise how bad I felt and I honestly don't see how I got though it,but quotes always help me though.