honestly, self-doubt is the only way you can keep becoming a better version of yourself everyday. And questioning yourself, reflecting on your actions is way better than people who question someone else's contribution in your life. Like if someone keeps saying "I was going through such a difficult phase, but you weren't there for me", get rid of this person. You are not responsible for the shit that goes in their life or for the shit that they created in their life. Demanding support from people and expecting support are entirely different things. You may have equally gone through a terrible phase, you may have never known what was happening, you may have no idea how to react to a certain situation, you may have taken a break because this person was toxic in your life, or you may have simply just not cared about someone who has always been a parasite in your life. And it's okay. People keep focusing on victim mentality so much that they forget, asking for help, blaming others for getting no help, doing nothing to help oneself, and never acknowledging other's efforts are things that you can't infuse in the one same thing called "I'm the victim"