It is not inherently wrong to choose not to attend your brother's funeral if you believe it would be emotionally overwhelming or harmful to your well-being. Grief can be an incredibly intense and personal experience, and there is no one "right" way to cope with it. Each person's situation and emotions are unique.
If attending the funeral feels like it would be too much for you to handle, it's important to prioritize your mental and emotional health, especially considering that you have the responsibility of taking care of your 1-year-old daughter on your own. Taking care of yourself is crucial during this difficult time, as it will also allow you to be present and caring for your child.
However, if you still wish to pay your respects to your brother in some way, you can consider alternative methods of grieving and honoring his memory. You could have a private memorial at home, visit his resting place after the funeral, or engage in activities that help you remember and cherish the time you had with him.
If you feel guilt or conflicted about your decision, it may be helpful to speak with a counselor or a mental health professional who can provide guidance and support. Remember that you do not have to go through this alone, and seeking help from friends, family, or professionals can be beneficial during the grieving process. They can help you find healthy ways to cope with your emotions and responsibilities during this challenging time.