Luck does involve an element of chance, but “lucky” people respond to circumstances by spotting the opportunity and then acting on that opportunity. In fact, people create their own luck by actively seeking to put themselves in the right place at the right time--and being in the right frame of mind to seize “lucky” opportunities.
You would love to sell to bigger customers. You never will unless you try. A lot.
You would love to connect with influential people in your industry. You never will unless you try. A lot.
Most incredibly lucky people are incredibly persistent. They try and try and try some more. Many of those efforts don’t pan out, but a few do. Is that luck, or is that persistence and a willingness to learn from what didn’t work, so that next time you are even more prepared, more skilled, more talented, and therefore more “lucky?”
Take chances. Reach. Try. When you succeed, others will think you were lucky. (You’ll know you weren’t; you’ll know you made your own luck.)