I am an anxious person. I usually get stressed out when I have to deal with people, especially strangers. This causes many problems. I tend to feel pressured to make decisions and when I make them I feel I make the wrong ones. Then I feel enormous guilt and spend days worrying. It drives my wife crazy but the anxiety and guilt seem overwhelming.
Thank you.
From your description, you might be suffering from either GAD (Generalized Anxiety Disorder) or OCD (Obsessive Compulsive Disorder) or, most probably, a combination of both.
Treatment with psychotherapy and SSRI-medicine in combination would do you good.
Read more.
You might also try self-treatment. Self-treatment is useful to learn even if you also get psychotherapy and SSRI medicines.