I think I have lost the ability to be happy. earlier I used to be happy for small reasons like good food, talking to a friend, watching a feel good movie. though i am grateful for things I still have there is no excitement about anything. instead there is fear, the feeling of being useless and worthless. I really want to do a job but I am going through anxiety and is unable to withstand negativity. it has also affected my overall life as I am unable to do basic things which I used to do easily earlier. I am scared when I see old people as to how dependent they are on others and I feel I am becoming that at this age. I badly want to laugh out loud but can't as though i have gone numb. also cannot concentrate properly on things. On top of it my head feels so tight.Are there remedies to get out of this? I badly need help and advice.