With AI tools disrupting startups daily, how do you stay motivated working on a pre–product-market-fit SaaS?

In a time when we see new AI tools emerging every day like crazy (often disrupting or replacing many startups), how do you stay motivated to continue working on your pre–product-market-fit SaaS projects?

How are you sure that an update on the most popular LLMs won't eat your startup?

Because let's be honest, the majority of the Microsaas tools will be kind of useless when AI agents come.