Vibrator help please! 🍆

I've owned a vibrator for a few months now and it's only been the last month that I've gone solo with it. It's one that has 10 different vibe patterns, but I only cum using the first 3 that are steady. My body kinda feels nervous with the other vibe patterns and I have no idea why. I can't even cum from using my hand anymore because it's not a steady vibration. Please help me to train my woowoo right!

😽