How to sell
If you're focused on what you get out of making a sale, you're doing it wrong.
Selling starts with pain
Selling is not persuading someone to do what you want. Selling is solving your customer's pain.
The pain may be stronger at certain times over others. There is more urgency to fix a flat tire than to be healthy. The pain may be broad and filled by many solutions. Boredom can be fixed with a Nintendo Switch or a library book, but the pain, the need for entertainment, is the same for both.
Everyone wins
There is a dollar amount associated with each pain. It will vary from person to person according to their priorities, but there is a dollar amount there. As long as your costs do not exceed the price the customer is willing to pay, a deal can be made.
The price the customer is willing to pay is the value. The magic happens when the value the customer gets out of using your product or service exceeds the cost of providing it.
The result
Profit is born out of meeting a need. The need that you had the privilege of fulfilling. When you sell well, the customer comes away feeling satisfied and thankful for the value you provided.
Do not fear rejection. When you're rejected you've discovered that the customers' pain was not bad enough to cover the costs of your solution. You've gained knowledge and experience. Don't take it personally. Too many other people need you to solve their pain. You've just got to find them.