If you want to become more careful then you have to: 1. Age: the older you get, the more errors you have made in the past, the more careful you are. 2. Meanwh

If you want to become more careful then you have to: 1. Age: the older you get, the more errors you have made in the past, the more careful you are. 2. Meanwhile... make yourself a procedure with bullets (or a decision tree) for critical things and stick to it . Sticking to it is fundamental. Something like "1. Make a backup of the original work. 2. Check the origin of the problem. 2. Check the solution done. 3..."