I think a mentor in a similar field might help. I have this issue also and it's been hard finding a place on the web for this type of discussions. It seems that

I think a mentor in a similar field might help. I have this issue also and it's been hard finding a place on the web for this type of discussions. It seems that most people will not seek to understand your problem but to advice you to adopt things that they know, irrespective of how suitable the solution might be for your specific use case. What helped me was to use the experience that I have from aerospace engineering when making architectural decisions, where we have had to budget and do trade analysis on key performance metrics such as accuracy, mass, power, bandwidth and cost. It's been surprising to me when I talk to seasoned developers who recommend various solutions without first asking me about number of users and requests and data sizes I'm looking to serve.