"'Be yourself' sounds like really generic advice, especially since your parents have been telling you to do so your entire life, but it is absolutely the most important factor for success. Choose a career based on what YOU love and want to do, not what other people believe you should do. Don't put on a persona when networking or promoting yourself; people can sense when you're being disingenuous. Know your strengths and play to them. Know your weaknesses and strive to improve them (or just learn to delegate well!)."