Well you did something very right: You had a plan and you executed it. You prepared and people liked it.
Nothing wrong with that and actually better than 50% of the new DJs that I see.
So my recommendation is: Go with it. You seem to love what you are doing and you can expand on this.
Next time maybe do not pre-train the whole set, but try to mix it up.
Stick to the golden rules:
– Never hesitate
– Never panic
– You are the coolest
Prepare double the amount of music (at least) that your set is long. Practice loads with the prepared song, but do not do a whole mix (do like 15min of mixing, take a break, do 15min of mixing,…).
I seldom drink alcohol before or during a gig, since I consider it unprofessional on my side, but when I am really nervous or jittery, I drink 1 good long drink before my set (like a Campari Orange works really well). So you are not drunk, but it does loosen you up a bit.
But the most important:
Keep true to yourself, do what you are comfy with and do not try to pull of stunts that you cannot yet perform.