Try the Documentation
Give the Benthos documentation a try, no one expects you to read the whole thing but it's there for a reason. Try using the search functionality and if there's a section that covers the area you're looking at then try your best to understand it. However, with that said, you will not be judged for missing something, if you're not seeing the answers you need then asking the community is definitely the reasonable thing to do.
Consider a Simpler Approach
When you have a particular solution in mind it's easy to slip into a mindset that blocks you from considering other approaches even when it's not working out. If you're struggling to find out how to make your solution work with Benthos then take a deep breath, think about ponies or something for a few minutes, and consider if there's a more Benthosy way in which your problem could be solved.
If not then we still want to hear from you as maybe it's an interesting use case we can implement a proper solution for, but it's good to have considered other approaches before it gets to us.
Test Things Yourself
Benthos has lots of ways to try solutions out, it has unit tests, a
generate input, a
benthos blobl server subcommand, and many more ways to get some trial and error done before asking for help. It's frustrating for us to spend our time reading and understanding configuration files and use cases that make up part of your question when it could have been answered with a few seconds of testing.