What advice would you give to someone developing his/her first AI-based application?

A friend who had never coded anything in their life asked me last week how to begin working with AI tools. I did not seem to have an easy answer to that, so I am trying to come up with one.

I would recommend taking a problem which you have yourself, but making it small enough to solve it within one day. Packing list, plant tracker, or bus schedule page for today only.

Then choose one of the three tools and stick with it for a whole month. It is easy to jump from Lovable to bolt.new to Cursor, but every time you change tools, it starts all over again because of what you have to learn about asking. I would also advise her to keep a backup after every major change because an assistant can ruin everything in one message.

What would you comment on? I am particularly interested in the mistakes you did in your first week and would tell a newbie to be careful of.