There is no wonder you feel stressed with such a lot of serious issues going on in your life at the moment. It may feel like you're having to look out for everyone else in the family as well as focus on school work, which is an added pressure. Your dad may be very preoccupied with what is happening for your mum - and she maybe feeling too unwell to focus on you and your siblings.
There are physical, and emotional aspects to the feeling of stress. It can be hard to concentrate, and things that normally don't trouble you, may feel an irritant. There's also the fearfulness of the unknown - wondering what the future holds, and being permanently mentally 'on guard' for more bad news.
It may be that you're the friend and sibling that everyone sees as the strong independent one (you mentioned you're a private person). This may seen by others around you, that you're coping. Other teenagers tell me that they don't want to trouble their parents about how they feel - so carry on bottling everything up - more pressure.
Many people find that to take control, it helps to seek support, and someone to talk to. This could be through the school - who often have accesss to counsellors, or the school nurse, or your teacher? With exams coming up, it's helpful for the school to now what's happening at home, as it will naturally affect study time etc.
Talking to your dad - saying you're struggling a bit, and wonder if he is too - opening up a conversation about how the stress might be affecting all of you. If you feel you can't do this, then if there's another family member - grandparent, Aunt or someone you could talk to? Your mum too, might like to talk about some of the bigger issues - and understand that you're finding this hard. The fear of the future is natural, but talking about it with your mum and dad may diminish the sense of helplessness - you're all in this together.
Try and have some 'you' time. Your familiar routines may have all been affected by what's going on - but time out with your friends is still important. They maybe don't get the depth of what you're feeling - cancer is something most teenagers have no experience of. However if they're good friends, they'll be there for you, and be prepared to listen?
There may be help and support locally - have a look in our 'Support in my area section' and see what is available. Here on riprap, teenagers get in touch with other through the forum. We dont publish emails or contact details, to protect everyone online, but hopefully teenagers will see your forum comment, and say how they feel too. If you read through the stories and forum/advice pages, you'll see many others in a similiar situation.
You can also message us here at riprap - via the get in touch form. If you'd like an email reply, just tick the box that gives us permission to contact you...