Feel the same , it was gard ,and with time i started to forget how it feels to be really happy and excited about anything ,so i went back to the begening , i start to search for my own happiness , maybe i left it somewhere ...go back to the last thing you were excited about and try it again , try to remmeber why you did it ? How you used to do things ;) your smile will be there :)
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From @karimgharbi