Advice? Hm, I mostly learned a lot that I can apply myself going forward. Too many things to list here. Not sure which of that is applicable to others.
But yeah it was a great learning experience in so many ways. E.g. realizing how different and unpredictable the environment can be in a live setting. We didn’t even have a proper table, had to improvise. The surface wasn’t very large/even/stable so I couldn’t use most of my MIDI controllers and had to everything on the DDJ-1000. Luckily it didn’t rain, but the sunlight was so bright that I couldn’t see whether the pad LEDs were ON or OFF most of the time, which is why I had accidentally muted certain parts during this performance (because I use the pads as semantic toggles for different things). Also learned a lot about how to perform better by doing it and reflecting on it. Also realized I had to fix my sound balance, my bass was way too loud so it was clipping in the speakers 
So yeah, a lot of learnings for myself, but not necessarily applicable to others, depends on your situation. It’s always difficult giving advice to others without knowing what they already know or what their their situation is.
Based on what you wrote:
That is great to perform a VCV Rack patch in public. I’ve been thinking about that as one of my long-term goals.
I’d say, don’t put it as a “long-term goal” to do “one day”: make it already your short-term goal 
Make a plan today, how/where you’re gonna perform (in the near future), with all the details (e.g. prerequisites, what you need in your VCV patch, which MIDI controllers, which musical ideas you want to show to the world / how you want to express/perform them → how the controller mappings have to look like, etc.), and then make some non-zero amount of progress executing that plan every day.
Like you see in the above photo, this wasn’t some big official event, just some friends getting together at a public park (unregistered event), someone brought a huge battery, someone brought speakers, and I brought the DJ controller, and then throughout the evening some guys DJed and I performed with VCV Rack.
This was my 2nd ever public live performance (first was on May 16, I rewrote my whole engine since then and didn’t have enough time to practice performing with it for this event). I was definitely under-prepared, but still did it, I didn’t even sleep the night before (and barely during the whole week), I was working on my own VCV Rack module that contains all the business logic of my live performance system/vision. The execution was severely lacking compared to my vision/expectations but it’s ok, I’ll practice more and get better 
Every day taking steps to get closer to my vision.
E.g. yesterday I had a remote session with a mixing engineer to fix my audio balance in VCV Rack (so the learnings from the event already had an immediate effect resulting in me taking different actions than I would have otherwise. If I hadn’t performed live, I wouldn’t have realized how badly the sound I had translates to big speakers. And by performing live in front of people I realized what I should prioritize next, instead of just being in my own bubble and having too many ideas about what I could do next).
And today I’m working on improving the sound design & performance workflow with my holistic controller setup (although I’m replacing the Intech Grid controllers with a Neuzeit Drop controller).
There’s something to do every day.
The long-term goals only happen when you pull them closer towards the present, otherwise they “stay in the future”.
I don’t know if it sounds like good advice to you (maybe you’re already actively taking steps towards that long-term goal of yours), so this is mostly advice I would give to myself in the past 
So, my “general advice” would be: Work towards your (musical) goals a bit every day and involve other people in your musical feedback loop, ideally “end-to-end testing” by actually performing live 