Dont lose hope!!
Sorry to hear what you are going through, its tough when you don't feel like there is anyone to talk to. I know how you feel. It sounds like you are a strong young man, the fact that you don't want to burden your Mum and Dad shows that. I have found reading other people's posts on here to be really helpful even though this is the first time I have posted myself, its a comfort to know that other people feel the same way you do.
I don't know if you have a maggie's centre near you, they also have brilliant councellors https://www.maggiescentres.org/ who might be able to help you.