Determine what the value of your job and career are worth over your life - it's probably your largest source of income. One's job will most likely be the largest source of income over their life. We don't often think of it this way, but should as it will have a major bearing on your wealth creation success.
By calculating how much your job is worth over your life time, you can get an upper bound of what you have to work with. One then needs to work backwards and consider how much they will spend and save annually. Understanding what you need for retirement is another factor for consideration. If the numbers don't meet your plans, then you may need to change jobs or career paths - the earlier the better.