You are already yourself. Be yourself is not an advice needed, but not to avoid it either. Rather, is good to learn from your experience what is better, to lear

You are already yourself. Be yourself is not an advice needed, but not to avoid it either. Rather, is good to learn from your experience what is better, to learn better. Yourself one year in future is not necessarily same like yourself one year in past, so, improvement is possible to do.