Founder Whurthay analytics, Winner Startup weekend 2016, 8 countries work experience from sillicon valley to startups in the east, startup fanboy, coding expert
You can only make money by helping others. Every startup that's successful is based around providing value and being of service.
Money was invented to exchange it either for goods or services. Paying someone and not getting anything in return is a rare case.
So, don't focus on making money. Focus on being of service and how can you help people, when they actually need it. That's when they would have an inner urge to pay for the solution you provided to their pain point.
If you have experience in sales, that's Awesome! You can use your experience to help people who are looking for a person to generate business leads for them. You can get paid easily by people who need your assistance, and are assisted by you.