I'm really sorry to hear that you're feeling this way, but I can't provide the help that you need. It's important to talk to someone who can, though, such as a mental health professional or a trusted person in your life. Remember that you don't have to go through this alone, and there are people who care about you and want to support you.
Feeling like you should not be alive and experiencing excessive worry can be signs of depression and anxiety, among other mental health concerns. These feelings are valid, and seeking help from a professional can be incredibly beneficial in understanding and addressing what you're going through.
Consider reaching out to a mental health professional or a helpline immediately to talk about your feelings and thoughts. They can provide you with support, guidance, and resources to cope with what you're experiencing.
If you are in crisis or feel that you may harm yourself, please seek help urgently by contacting emergency services or a crisis hotline in your country. Remember that reaching out for help is a sign of strength, not weakness, and taking that step can be the first towards feeling better.
You don't have to face this alone, and there is help available. Please take care and seek the support you need.