What You Can Do
Find support. If you find yourself getting swept away by negative feelings, try to be understanding of yourself and what you are going through. Accept that your feelings are natural and see if you can find support to help you avoid taking your fears and feelings out on yourself or your family. (And if you do slip up and lose your temper, forgive yourself, apologize, and move on. Everyone has trouble making sense of emotions sometimes, even adults.)
Talk to a parent or an adult you trust, and consider joining a support group — many hospitals and medical facilities have sibling support groups.
Write it out. Try keeping a journal of your feelings and thoughts, or compose songs or poetry about how you feel. Let yourself be totally honest and don't judge yourself for what you feel. If you are not much for handwriting, you can always create a password-protected document or (if you're not a writer at all), use art or karate or some other form of self-expression. Think of it as a safe way to vent and work through your feelings and release anger and stress safely.
Take time for yourself. Don't forget to take time for yourself to have fun, relax, and spend time with people who care about you. It's great to help the family — they really need you right now. But you don't need to be on call 24/7. Be sure to make time for yourself too.
Helping Your Family — and Yourself
Because of your age, you can be a big help to your family — you can cook, do household chores, run errands, babysit, and help out in ways little kids can't. Doing these things can help you feel good about yourself: you can really make a difference. In fact, many teens whose siblings battled a serious illness say they emerged feeling stronger for it.
Taking an active role as a caretaker can be character-building. It can help you gain maturity, self-esteem, an increased awareness of and empathy for others in similar situations, and make you feel closer to your family.
Being able to help also lets you feel more in control when things get crazy. But being able to help can have downsides if you feel like parents depend on you too much or take your help for granted.
Sometimes the expectations get too great and your family responsibilities start to get in the way of your well-being or schoolwork. That's when it's time to speak up so you don't get trapped in a cycle of resentment and guilt. If you're not ready to talk directly to your parents, talk to the social worker at the hospital, your school counselor, the parent of a friend, or your coach.
If you start to feel overwhelmed by everything you're expected to do (or the things you think you should do), talk to your parents and try to let them know what you're feeling. Tell them you want to help, but you're worried about school and other responsibilities. Work together to find ways to compromise so you can still help out but also stay connected to friends, sports, and other activities that are important to you. If you can't talk to your parents, talk to a trusted adult about what you can do.
It can help to remember that, even if parents and siblings are too busy and stressed to acknowledge it right now, your help and support mean a lot to them.