I'm currently going through my old negatives, 10 fat folders of them with a view to putting them in printed books. Currently scanning, spotting and tweaking 1975 - 1980 monochrome. It's a real effort but my only regret is I didn't take more pictures!
The thing is at the time you think people and places will be around forever - they won't. Record them now. Some of the most fascinating shots are throwaway street corner photographs. The hair-dos, clothes, cars, shop fronts, advertisements have gone and sometimes entire areas have been flattened and rebuilt. Even the graffiti is heritage.
The lesson is take more photographs, you won't regret it.