Take responsibility for your own happiness and plan out things you want to do for yourself. Don't wait for others to invite you or make plans. Sit down and write down everything you want to do over the next four months. Be creative and figure out what activities, restaurants, books, lessons, and places you want to explore. Don't expect one person to fulfill all your desires, find different people for each area of interest. Enjoy the experiences and people you encounter along the way.