Feeling anxious, stressed, nervous and hopeless. Please help?

Its hard to see clearly when you are feeling down, chances are that you have more friends than you realize. Try to avoid diagnosing yourself with mental illness that's for a psychologist to diagnose, but you've got to be honest, they can't help you if you won't let them. I had a friend move away once but I still stay in contact, its not so bad. As for your feelings towards this girl, well.. talk to her CALMLY don't just go yell at her but depending on the situation it may be worth just telling her how you feel, she will either feel the same way or she won't either way you will be able to either move on or not rather than staying in the middle. Lots of people call their mother "mummy" sure it can be seen as weird but don't worry about it too much, I don't think your mother will mind much if you start referring to her as "mom" in public if you explain why.