How do you go about fear of solving the wrong problems as an early stage? I will not promote

I’m trying to solve a few problems in MEP firms (construction) From all the research I’ve done, they’re expensive, time costly and solvable with AI agents (what our startup is about) But everyday whenever I have to do the hard work (like outreach) I get this sudden wave everytime telling me what if it’s just not the right problems what if it’s actually a problem but not worth paying for and so on and it gets bad And it geneunly hinders my work a lot as we are in this early stage I know the solution is to “t