I currently have three 6*s on my main.

After I started the game late november, I quickly realized it would be near impossible to get 6*s, so I gave up that account, created a bunch of multis, and rolled the free starter flower gems until I got a 6*.

so that was my first 6*. The second came from the christmas ticket that had a 50/50 chance for getting a 6*.

Finally, did my 4th or 5th 10+1 YOLO pull (got all 3-4* the first try and only a single 5* the other tries) just this tuesday, before I found out that there would be a guaranteed 5* gacha coming up. Would've kicked myself in the behind if I didn't get anything good, but luckily I got my 3rd 6*.

So that's how I got three 6*s.