Are you constantly stressed out by the work that you do day-to-day? Do you hate getting up during the week because you dread going to work (wherever that may be)? Is "job" a four letter word in your vocabulary?
Then you need to change what you do, fast. Did you know that stress has been proven to cause heart attacks and strokes? Yes, long term, doing work that you don't love can kill you--literally.
Besides, if you don't truly love what you do, your success will be limited. A "secret" of the most successful people in the world is that they have a real passion for their work. To them, it's not really work at all.
For example, today I got up, answered some support tickets, hung out at the $7 Secrets Forum to answer a few questions and read what was going on, and checked my inbox for the flood of sales that had come in over night. I was interviewed by an associate I met at the $7 Secrets Forum, and that went very well. I decided to reward myself with 9 holes of golf (and I did much better than usual). Then I came home, answered a few more support tickets and got the pool and spa cleaned up and heated for my family to enjoy later tonight.
Not one single thing I did today felt like "work". In fact, I often tell people who ask me what I do for a living that I don't really have a job--"I play around for a living" is what I like to say.
And yet, despite not really doing "work"--since I love what I do--I earn many, many times more than I ever did with a J-O-B. Success found me because I am passionate about what I do.
That's not to say that there aren't some stressful days or situations that I have to deal with. They happen, sure, but they are not the norm. If you're not loving what you do 4 out of 5 work days, then you seriously need to consider a change.
Being passionate about your work means you'll put effort into it to make it the absolute best it can be, regardless of whether or not it will "pay off" in the end. People who are focused solely on the bottom line will only invest as much time and energy into their projects as they feel they can get out of it. Those financially implied limitations, while maybe understandable, never produce the "great" products or web sites. The greats are built around passion and interest, not money.
Work at your passion, give it your all, make it the best it can be. That will show through in the final product, and it will naturally draw people who are interested in the subject. They will see your real love for your work, and they'll respect and admire that. More importantly, it will keep them coming back for more.
No, you will never truly succeed if you don't love what you do for a living. You'll hit a ceiling and never go any higher--or your stress level will grow and grow until you die of a heart attack or stroke.
Love what you do, and every work day will be like a mini-vacation.