No strap on main awning. How do I know the length I need?

Thank you. :) I know you're right. It's just that suddenly, I feel very unprepared for the choice that I have made. Fear is natural and I am a single woman, not in my prime, and it will pass. I will survive.

I will be primarily boondocking until August or September, when I will have my short-term loan repaid to my family member, then I can spend money on spaces with power, buy a used generator, etc. Until then, I'll be roughing it and praying to God that nothing major needs replacing.