Being "selectively submissive" myself, I had this trouble when I first allowed my sub side to re emerge but fortunately I recognized it early (as you have) and I was able to show my sub that I was not a joke as a Top. I had to be a lot more aggressive to regain the control I needed and I had to do it quickly and decisively and leave no room for them to regain the Top position ever. When I wanted to submit I used someone totally different. Hope this helps.

Oh and if you ever need a Mistress..... look up MistressDhyanna