Continue to live life. I'm going through the paces right now, and I hope I find where I fit. There was guilt during all of this.
Growing up, it was beaten into me that it was always my fault. Always. That mindset still follows me. At its worst point, people would glance my way and automatically I believed I did something wrong, and a pathetic sorry would fall out of my mouth.
Any mental illness who's condition comes with a sack load of depression will tell you all the reasons why you shouldn't be on this earth. This voice is particularly the loudest on your birthday. If then the sense of the day is impersonal, echoes of worthlessness and burden follow through.