When Melody McCloskey was 26 years old, she set out to launch an online beauty start-up StyleSeat.
She had no experience in software engineering and was not part of any accelerator program.
Without getting feedback from others, McCloskey knew she wouldn't succeed.
"I remember not wanting to bother people," the now 32-year-old co-founder and CEO told CNBC. "That really held me back in the beginning."
It's a common fear, but it's one that she had to overcome to succeed. Now McCloskey oversees a company that has done more than $3 billion in appointment bookings.
Here's this CEO's step-by-step guide to sending a great unsolicited, or "cold," email, and to turning a first contact into meetings, relationships and more.