Congratulations!!! Having worked in higher education for 12 years now and as a college president for 5 I can tell you, you are not alone. We get many students who come to us after spending time working, raising a family or who just decide to make a life change. I have found that those people, with few exceptions, fare much better than students who enter right after high school. They are more focused, more mature and more willing to expend the effort to understand the material - in short, the do better despite having misgivings and concerns. You'll do great!!