Need help. But what should i do for now?

I'm suffering from a anxiety. I use to take a lot tension for almost everything in my life. Every minor issues gives me worry like health problems, exams, long trip etc. I'm also not able to sleep properly at night. I wake up frequently at night. I have tried almost everything to reduce my stress level like gym, meditation etc but nothing is helping me now. After my friend's and two relative's death now I'm very much afraid of death. Every minor issues about my health gives me worry that what will happen if I die? Because of taking so much stress I'm suffering from IBS problem. What should I do for now? I'll consult a psychologist later in this year. But what should I do for now? Sometimes I feel very lonely when i don't go to class and i stay alone in home as both of my parents do jobs. Even with friends i feel cornered and isolated in spite of knowing that they have no intention to corner me or hurt me. I'm not able to handle those tension now. I'm tired of it. please help me out.