You are always going to miss something but you will have someone or maybe your own intuition that will help you do the right things according to circumstances and after a while you will realise it was supposed to happen and you lived it like you were supposed to. So you might not realise it but you are living in the moment. The thing you are not able to do is, savour it to the fullest because ofcourse we are too confused, depressed or even hyped to understand what is even going on in the moment but it will come, with age or sense or maybe a person when each one of us will be able to savour the things we will do consciously. It's just a matter of when.