Start the Entrepreneur Roadmap
Tools designed to help you build a tractionable business designed to succeed. Each step has numerous resources for you to access. Books, service providers, specialists etc.
As a starting solo-preneur, the focus should be on the Steps 1, 2, 3, and 4. The others will come later.
Do Self Assessments
These will help you understand you as an entrepreneur (personality, grit, skills, Emotional Intelligence, and more) as well as your team and your business model.
As you are mostly working alone, work through the detailed version of the Entrepreneur Assessment for the most help.