Should i cancel my A/B thumbnail testing?

I released a new video today. It started performing quite poor. I changed the thumbnail early to a much better one. After 7 hours i also changed the title. Generally, i sometimes make changes if i see bad performances and i saved plenty of poor performing videos that way.

After i changed the title, i set up the A/B thumbnail testing with 2 additional ones. Its the first time i am actually trying this. Right now it is still the thumbnail and title i picked after 7 hours. And the video has started performing. As in, really good. I have quite a few videos in the 3-18k views range but this one could get up there if it keeps the trajectory from the last 2 hours. Almost unusually high views, which is obviously great.

Now i am not sure what to do with the A/B testing, since its my first time. Should i cancel it and just leave the current package? Will youtube potentially switch up the package while the video is still performing great?

Any advice/experiences would be much appreciated.