Anxiety problem. And treatment of it!

Hello I have anxiety symptoms and I want treatment of it 1 I am shy from childhood and also introvert in childhood 2 I don't like to go anywhere in childhood and I can't sleep any other place in night 3 I feel shy to talk with someone over phone and face to face 4 I wish and want to do many things and think daily in morning I will do that thing and go there and there but feel nervous and stress before going anywhere 5 I wish to visit places and will visit but I don't go if I feel shivering anywhere and due to stomach problems which is due to anxiety 6 I don't feel nervous daily but before going anywhere and not feel negative or overthinking daily 7 I don't drink or smoke and no any other bad habits 8 I go many places and stay many places in night but from last two years I face the same problem So tell me exact problem and treatment of it