Advice for a beginner?

So i ordered a Helix Syn V and it arrives tomorrow. Naturally I’m excited but I know I probably won’t get results right away. I havent ejaculated in 4 days and I discovered Mindgasm today and did the first lesson. It wasn’t too hard, but I didn’t really feel a tingly feeling so it said I might. However it did involuntarily spasm a bit or maybe i just didnt flex hard enough.

Anyways, any advice someone could give for a beginner to prostate play? I only have a 3pc buttplug set which isnt really ideal for prostate olay. I have a lube shooter and aneros lube so I’ll use lots of that. How should I do the contractions? Any pattern i should follow? What positions do you recommend?