Guilt and shame can be very powerful emmotions. Guilt usual stems from doing something you feel is wrong on some level. Like steal or lying to someone. Shame usually stem from feeling of oneself, like feeling like you are a bad person and being ashamed of yourself. Guilt can be a good emotions. It can keep our actions in check with our beliefs and conscious. Shame one the other hand can add to your misery, expecially if you are ashamed of yourself and possible your mental illnesses. I am struggle with this. For a long time I felt ashamed I had depression. Like somehow I was a bad person and desrved to feel miserable. I kept things inside and didn't get help until I self destructed. It is hard to accept yourself, expecially if you have low self esteem. It's not your fault you are depressed. You deserve to be happy. There are something that can help you. Like looking at where these feelings come from and trying to find some resolution for them. You mentioned feeling guilty about being critized. No one is perfect and it sounds like you are over critical of yourself. I do this too often. I make a mistake and I get really angry with myself and have a lot of negative self talk. I have to remind myself that I am allowed to make mistakes and I can fix things if I make a mistake. Making a mistake doesn't mean poeple will hate me or that I should hate myself because I messed up. I hope you can learn to like yourself more and give yourself some kindness and tolerance. I hope some of this helps.