The early stages of a project is exactly where you should really think hard and long about what exactly you do want to achieve, what qualities you want the software to have, what are the detailed requirements, how you test them, and how the UI should look like. And from that, you derive the architecture.

AI is fucking useless at all of that.

In all complex planned activities, laying the right groundwork and foundations is essential for success. Software engineering is no different. You won't order a bricklayer apprentice to draw the plan for a new house.

And if your difficulty is in lacking detailed knowledge of a programming language, it might be - depending on the case ! - the best approach to write a first prototype in a language you know well, so that your head is free to think about the concerns listed in paragraph 1.