> "I'm worried, I don't work well when tired" Don't worry. You'll learn that your current definition of the word "tired" is wrong. Your current "tired" will be

> "I'm worried, I don't work well when tired" Don't worry. You'll learn that your current definition of the word "tired" is wrong. Your current "tired" will become your new "okay", and I'm no I'm not joking. However! You'll also learn that this attitude of "I need sleep to perform" is in your head, and be amazed at what you'll be able to do when you have to. You'll find that not having a choice in what you _have_ to do, works wonders for your definitions of "can" and "can not", because the next day you'll still be at work, and you'll still get things done. I also don't do well with little sleep, but here I am (still getting promoted). To answer the title question more generally; it's night and day. I now understand how self-centred and egotistical I used to be. Of course the degree won't be the same for everyone, but I think there's still a certain level of egocentricity that anyone without a child can't escape. Best advice I can give you is not to stress about a single thing. Statistically, it's much, much, more likely that it'll all work out. Worrying about the very small possibilities is too much when you're already over-tired, and it wouldn't do any good in any case.