In Grant Cardone‘s Book “Sell or be Sold” he says the first rule of selling is to be sold yourself. What this means is in order for you to make that 100% commitment to never give up on any journey you take whether this is in sales or in a relationship; you must believe with every fiber of your being that you are in it, you believe, and you are sold yourself. @GrantCardone You can find this book that i highly recommend here.