It sounds like that you need to regain your self confidence. Without self confidence we start to doubt ourselves and our abilities, we also build up the stress and anxiety in our lives.
It would take more room than I have here to cover everything in detail, so what I would like to do is to provide you with free publications that I feel will benefit you. There is going to be a lot of information for you to absorb, because I am sending you the direct links to the information needed based on your statement.
Please take the time to read and review each as they will cover the areas that are giving you so much concern in your life.
Again these are free with the direct link to each and you can use these in any way you feel fit.
Eliminate stress and anxiety: http://confidentlifestyle.com/Documents/Stress%20e%20book.pdf
Unstoppable confidence: http://confidentlifestyle.com/Documents/Unstoppable%20Confidence%20rev.pdf
The new you - give yourself a new life makeover: http://confidentlifestyle.com/Documents/THE%20NEW%20YOU%20rev3.pdf
Get motivated: http://confidentlifestyle.com/Documents/1GettingMotivated_002%20Rev.pdf
How to get what you want from life: http://confidentlifestyle.com/Documents/How%20to%20Get%20What%20You%20Want%20rev%202.pdf
101 everday tips for losing weight: http://confidentlifestyle.com/Documents/101diettips.pdf
setting up a budget: http://confidentlifestyle.com/Documents/family_budget.pdf
Setting goals: http://confidentlifestyle.com/Documents/goals.pdf
Avoid procrastinating: http://confidentlifestyle.com/Documents/avoid-procrastination.pdf
I know that this may seem like to much information, but I feel the pain and sadness in your statement. I truly believe that you will find many answers to your problems in the above publications and courses.
Please, please read, study and start to utilize the information above. I have faith that you will start to see a change in your life. Please also let us know how you are doing.
Good luck and best wishes to you.