I walk alone in the street, watch birds and blue sky from my room's window, stand alone with silence in balcony, give food to street dogs, help poor people, meditate long hours, write journal, do official work with huge interest, write book review on Instagram, teach someone any new thing, learn something new skill, read novel and religious books, give myself positive affirmation, pray every morning, love myself more passionately and check my thinking pattern ins and outs. I do these for myself to be happy.