Developing can be really hard. Depending on your product there are probably a lot of people who have been developing for years who couldn't feel comfortable say

Developing can be really hard. Depending on your product there are probably a lot of people who have been developing for years who couldn't feel comfortable saying they'll be able to build your product. Just keep pushing on. Worst case scenario is you learn more and have some ammunition to avoid getting swindled by a developer later on.