2. You don’t save enough.

We all want to retire someday, right? Well, the bad news is most of us won’t be retiring in style if we only rely on Social Security benefits to live. The average Social Security recipient in 2014 got only $1,300 a month. Those golden years are starting to look tarnished already.

So what can you do? Save in your workplace retirement plan and take advantage of your employer’s matching program, said consumer finance expert Kevin Gallegos, vice president of Phoenix operations for Freedom Financial Network. He recommended saving 10 percent to 15 percent of your gross pay for retirement. If you can’t swing that, start with what’s manageable for you.

3. You have too much credit card debt.

The financially savvy see credit cards as a convenience, not a bank account from which to draw. The average credit card interest rate stands at 13%, meaning that everything you buy, from dinner out to a flat screen TV, will cost you 13% more if you don’t pay it off immediately.

That’s why a good friend would tell you to avoid using credit cards except in emergencies. “Few, if any, investments will return as much,” said Gallegos. “Having no credit card debt provides a financial cushion itself.”

So the next time you whip out that Visa to fund your latest impulse buy, add in the interest costs and reassess whether it’s really worth it.

4. You never consider the opportunity cost.

Here’s something that most people know but only the financially savvy apply: Every purchase has two costs. One is the price you pay for a product or service. The second is what you’re giving up when you make that purchase, or in other words, its opportunity cost. You bought the shoes but now you can’t afford the dress or that contribution to your IRA this month.

Billionaire investor Warren Buffett often quotes his friend and partner, self-made billionaire Charles Munger, when speaking about opportunity cost. They see their biggest business mistakes as missed opportunities that kept them from making more money. They call them “mistakes of omission.” They didn’t invest in something when they should have, or they weren’t able to because their money was tied up in another investment.

So what will those shoes cost you in the long run?

5. You give up too easily.

If you weren’t born rich, then you will have to work hard for your earnings and adopt a steadfast attitude that could translate into wealth. “Look at every successful person across a wide spectrum of industries and activities,”  said John Mulry, a GKIC certified business advisor. “All had their obstacles, demons and downfalls, but their desire to succeed and ability to overcome was greater than anything else. They were willing to stop at nothing to achieve.”

Most friends don’t want to tell you that you’re a quitter. So you might have to make the hard call, which is something only winners do. Call it the quitter’s paradox.

6. You eat out too often.

Who doesn’t love to stop at Starbucks for morning coffee, then go out to lunch with colleagues, and later grab a get-me-through-this-day Frappuccino? But do you know what you’re brown-bagging friend at the next desk is thinking? “That’s a waste of $25.” One medium Starbucks a day, five days a week, will set you back about $1,100  per year.

Take note: It costs as little as 27 cents to brew a cup of coffee yourself. If you add milk and sugar, the cost climbs to 75 cents. You still just saved more than $900 a year. How does that Starbucks taste now?

7. You don’t have a clear financial goal.

So you have a friend who runs marathons, climbs mountains and made a million before he turned 30. The first thing he’d tell you is that you need a clear goal to accomplish anything and to manage your money.

“It’s very hard to get where you’re going without knowing where you want to go,” said Gallegos. “Similarly, it’s very hard to save without setting goals. Those goals might include retirement, a vacation, a new piece of furniture, a child’s education or time to train for a marathon.”

Whatever the goal, write it down. Then budget for it. If you get stuck, call your buddy who climbed Mount Everest for advice.