The most wonderful time of the year can simultaneously be the most stressful and depressing for some. Whether you're pulling double-duty at work, worried about the tax year coming to a close, or watching the numbers creep up on the scale, December certainly isn't all snowflakes and hot cocoa for everyone.

The good news is that the month will fly by and 2015 will be here before you know it. But are you ready? Daily affirmations can be a great help, according to Spirituality and Health, but you don't need to come up with them on your own. Check out these inspiring quotes from the greats and contemporary celebrities alike. They'll help you get through the holidays with cheer and kick off 2015 right:

1. Helen Keller

"The best and most beautiful things in the world cannot be seen or even touched--they must be felt with the heart." This is the perfect reminder that the winter holidays aren't about the biggest present or dominating at Black Friday sales. Check out HGTV's ideas for handmade gifts this year that mean more (and save you money to boot).

2. Swami Sivananda

"Put your heart, mind, and soul into even your smallest acts. This is the secret of success." This advice applies whether you're revamping your exercise routine, starting your own business, or even cooking a wholesome meal for your family. It's the little things that count. It starts with slowing down, and Real Simple has some "real simple" tips on doing this.

3. John F. Kennedy

"As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them." This is a great reminder if your family is the type to go around and say what they're thankful for during the holidays. Actions speak louder than words, and they're how you can tell a person's true heart and intention.

4. Milton Berle

"If opportunity doesn't knock, build a door." If you spend your whole life waiting for the perfect opportunity to present itself, you'll be waiting a long time. The most successful and happy people create their own destiny and opportunities. Make 2015 the year when you take that step, whether it's starting that blog you've always talked about or reading the classics.

5. Steve Jobs

"Everyone here has the sense that right now is one of the moments when we're influencing the future." That statement was true then and it is now. Every second of every day, you're making a choice about your future. Maybe you zoned out to a TV show when you could have been organizing your rÃ©sumÃ©. Remember that this moment's action will lead to a result down the road.

6. Emma Stone

"I just like to keep working and being able to pay my bills." This one sounds like a no-brainer, but sometimes it's important to remember to appreciate the basic things in life. Your ability to work, to make money, to be responsible and from time to time splurge (even if it's just on a fancy coffee) shouldn't be taken lightly.