[jvaqueiro]

There's also the option of working with an agency or freelancer. Since you know about frontend and design, you might be able to work out something for a reasonable price.

For these types of projects (in a validation state) I recommend using Stripe subscriptions, they have incredible low code tools that will handle all the heavy stuff. You'll save a lot of time.

Disclaimer. I run my own software studio.

[jvaqueiro]

Btw, I don't think wordpress is the right tool to implement what you're looking for.

It'd be usefull for your marketing pages, blog and product updates, but not so much for your application logic.