“Never look backwards or you’ll fall down the stairs.” Rudyard Kipling
I think this quote means that if you look into another way of life you will find your self in a bigger problem. If you look back into the way you think you should have done it will come out even worse. So don’t look into ways it could be better look into ways that the impact of that problem will make other things better that might be more important. So if something goes wrong keep going up the stairs and it might feel better.