Yep. That was me when I started my first company.
I had no fucking clue.
And yet I managed to raise millions of dollars in venture funding, built a fantastic team, convinced global brands such as Yahoo to be our customers and sold the company in the end.
What I missed in knowledge and experience I made up in audacity, guts, fearlessness and the deep-rooted desire to learn.
This can be you. You just need to want it enough.