Attitude is everything. I've selected a few quotes from this article: 150 Good Attitude Quotes That'll Help You Get Into a Happier Mindset
“Optimism is the faith that leads to achievement; nothing can be done without hope.” — Helen Keller
“The only disability in life is a bad attitude.” — Dale Carnegie
“You’re off to great places, today is your day. Your mountain is waiting, so get on your way.” — Dr. Seuss
“Nobody can be all smiley all the time, but having a good positive attitude isn’t something to shrug off.” — Yogi Berra
“To be a great champion you must believe you are the best. If you’re not, pretend you are.” — Muhammad Ali
“You can often change your circumstances by changing your attitude.”
— Eleanor Roosevelt
“I don’t think of all the misery but of the beauty that still remains.” — Anne Frank
“Weakness of attitude becomes weakness of character.” — Albert Einstein
“Positive thinking will let you do everything better than negative thinking.” — Zig Ziglar
“Attitude is everything, so pick a good one.” — Wayne Dyer
“Always bear in mind that your own resolution to succeed is more important than any other one thing.” — Abraham Lincoln
“When a happy person comes into the room, it is as if another candle has been lit.” — Ralph Waldo Emerson
“Keep your thoughts positive because your thoughts become your words. Keep your words positive because your words become your behavior. Keep your behavior positive because your behavior becomes your habits.” — Mahatma Gandhi
“Start each day by affirming peaceful, contented and happy attitudes and your days will tend to be pleasant and successful.” — Norman Vincent Peale
“I like to encourage people to realize that any action is a good action if it’s proactive and there is positive intent behind it.” — Michael J. Fox
“You always have a choice, even if it is only a choice of your attitude.” — Henry Ford