Periodically re-check and refine (or redefine) your goals
It's no use struggling to meet a goal that, by the time you get there, no longer fits in with your life. During obvious stopping spots along the way (say, every 10 lbs on a weight loss goal, or when you've saved enough for a down payment as part of a house-ownership goal), take a few days to sit back and really feel how you are reacting to reaching this milestone. Are you excited, chomping at the bit - or nervous, with slight overtones of dread or entrapment?
Some nervousness is to be expected if you're reaching out in a totally new direction in life, and it's only fair to expect that not all feelings you have will be cheery and rosy, even if you truly want the goal you're heading for. There is, at the very least, some mourning to go through for the loss of your old ways and your old life. But take time to make sure that you aren't ignoring obvious signals that are screaming, "Run away! Run away!" for good reasons. Wedding jitters, for example, are perfectly normal; however, trepidation about abusive behavior, which doesn't seem to be declining (despite promises to the contrary), is another ball game altogether. Make sure that the goal you reach is the goal you want.