Be thankful it was 5k and not 150k. It is very easy to fall for sales pitches of vaporware in this industry. Have you considered using Cursor/Claude code to try to build out the infra? (I know you're non-technical however so that may be challenging)
That said, I guess $5k isn't much when we consider how much worse it could have been. There's always something to learn. Are you a technical Founder?