All the answers are within you

Your mind can escape to the past or to the future. You can adjust your mind and believe to be happy by confirming that you have had a happy childhood, school time, marriage, life, but your body does not lie. Your problems, whether physical or emotional, are a perfectly normal reaction to an abnormal situation. When you suppress your feelings, thoughts and desires, and do it for a long time then problems start to appear somewhere else in your body. Your body never lies. Start doing things that you like and are rewarding for you. Start straight away; do not delay by telling yourself that you need prerequisites, stop looking for justifications as an excuse because if you are doing something it will create a feeling.
When you change your behaviour, your feelings also change.