My daughter is only just 18. She is a bag of nerves. Worries about everything. She won't even sit in a car outside a shop on her own. Anxiety levels are very high. She was worried about going to toilet in the night in case someone was in the house so we bought a night light for the hall so she could see where she was going. But recently she is having IBS symptoms. She is also staying in her room a lot of the time despite me going in and asking her to come watch TV, go for a walk etc. I need help to help her relax. Anyone any advice?