The conscious mind is meant to align all your capabilities in accordance with its beliefs about the nature of reality.
You cannot will yourself to be happy while believing that you have not right to happiness or that you are unworthy of it.
Your beliefs will dictate your very interpretation of various kinds of emotions. Many people for example are convinced that anger is always negative. It can be the most therapeutic emotion under certain circumstances
Clues to your emotional experience and behavior lie in your system of belief and all are available to you consciously.
If you believe that the negative thoughts are wrong you will inhibit them and feel all the more guilty which will generate aggressiveness against yourself and further deepen your sense of unworthingness.
First be aware of the reality of your feelings. As you become more aware of your beliefs over a period of time you will see how they bring forth certain feelings automatically.
The free flow of your emotions will always lead you back to your conscious beliefs if you do not impede them.