For traditional students, all they want to do as an undergraduate is finish. Your mindset, and motivation, is different and I think that's going to help you a lot. If you're going for engineering, push hard to stay ahead of the curve, and avoid group projects like the plague (engineering students are just as bad as every other student in that regard). Let your professors know you've got a family, and most will be a little more flexible with you. Have some patience with staff, as they're used to dealing with whiny children, and sometimes don't turn that switch off very well.
Good luck.