Subscribe to every business magazine you can find. The cost of most subscriptions is ludicrously low. The small price of reading is the best investment you can make - far cheaper than knowledge gained by trial and error. Learn to sell No matter what business you are going to be in, you'll have to sell. Services or goods, retail or wholesale, negotiation and persuasion are critical success skills.
Rejection is part of sales and business.
Far better that you learn how to overcome rejections now than when your income depends on maintaining your motivation. But you have to. Ask to be on your company's United Way team, other charity drives, and any community service projects. Charity groups are always looking for volunteers. There are three added bonus benefits.