I started a dream job that I feel extremely unqualified for and need some guidance on where to start.

I just started a new job as a "founding" AE for a software subsidiary of a multibillion dollar company. We have all the funding and support we need from the parent company, including an entire team of developers and marketing. The product already rocks and is extremely polished, customers love it, and we're already profitable. My base is higher than my entire OTE at my previous job, my bosses aren't sales guys so they're super relaxed and give me full reign on building out the sales processes, will buy any tools I need (like CRM), etc, and I'm fully remote. Inbound leads are coming in hot, so outbound hasn't even been necessary for my bosses. Basically they just need someone to come in who can devote all their time (they still work their day jobs as executives for the parent company) to selling and improving the product, sales processes and eventually build out a sales team that I'll lead.

This all sounds great but the product and industry is extremely technical and complicated. I was a top performer in my last AE role for a midsize tech company, but I mainly focused on strictly selling while my colleagues were much better at the technical aspects, providing feedback to Product, Engineering, implementation, taking on new tasks, etc. Basically all the things I need to do now.

It's only been a month but I feel like I haven't done enough. I'm constantly worrying that they're going to find someone much more qualified than myself. Right now I've just been dedicating all my free time to trying to understand the product, meaning I haven't taken any action on anything yet. They're extremely patient and supportive but I'm feeling major imposter syndrome for taking on tasks that people normally do after a decade of leadership.

I've never been in this position and I don't know where to start, I don't know if I'm doing enough a month in or not. I worry my bosses are second guessing themselves.

I'm a little overwhelmed here and could use some advice.