If you live in the moment, you can experience happiness. If you always worry about what your future is, you will miss the experiences of today. You can't predict the future, but you can change the present.
Never create unnecessary drama, and don’t surround yourself with those who do. Choose friends who you are proud to know, people you admire, who love and respect you – people who make your day a little brighter simply by being in it. Don’t walk away from negative people, RUN! Life is too short to spend time with people who suck the happiness out of you. - read: http://www.marcandangel.com/2015/01/21/8-toxic-beliefs-most-people-think-are-normal/