“See How You Go” Means Try It and See What Happens

In everyday Australian English, “Try it and see how you go” usually means to try something and find out how well it works or how you manage. It is not an instruction to watch the way someone walks. Here, go concerns progress or outcome. The tone is usually friendly and leaves room for the result to be uncertain.

After showing you a new system, a colleague might say, “Have a go, and see how you go.” They mean, “Try it and find out whether it works smoothly for you.” “Let me know how you go” asks you to report the result later. The expression is more restrained than promising that everything will be fine, but it need not mean “sort it out by yourself”. It often suggests that the next step can be adjusted in light of what actually happens.

https://dictionary.cambridge.org/dictionary/english/go
https://www.abc.net.au/education/when-is-wrong-grammar-right/13953312