You could try reframing the question and tell your mother that you are very sad and need someone to talk to. Again, like Mariana said, no one here can predict how your mother is going to respond. Outright telling someone that you feel like committing suicide might scare them though and they might panic. But who knows? May be she would be very understanding and cool about it. Either way, I think you ought to reach out to someone in real life. It might lead to something good. Your mother might offer to pay for visits to a psychologist, if that is something you would find helpful. Keeping things bottled up inside, on the other hand, just makes things worse as it increases the sense of isolation and it prevents the possibility of good opportunities arising.