I needed to write a ten-page research paper on a religion I knew nothing about, and submit another paper before the first class. I withdrew from that course before it began and took a different one. If you have school age children, one benefit of re-entering college is that studying sets a good example for them and shows the importance of education. Working hard in school will be more important if Mom and Dad do it, and I've spent some Sunday afternoons studying with my son in a university library. Your coworkers and friends might also be inspired by your educational progress and decide to join you.
Time passes at an ever-accelerating rate.
At my age, it seems that as soon as the smoke drifts away from the candles on the cake, another year has passed, and it is time to light them again. Once you enroll and get the process started, you will be amazed at how quickly the credits accumulate, and in a few years, you will be well on your way. Don't wait another minute, and don't worry about making the wrong choice. Go to some college website after you read this. Find a suitable course that interests you, contact an advisor, and register.