Daily check in on my stout, seems to have gotten a bit excited in the night.
E1: Changed out the airlock, sanitized, the whole shebang. Came back 5 minutes later, it happened again lmao. Swapped in another clean airlock, this time with some vodka in it to see if that helps.
E2: Swapped out the airlock again, this time with more vodka, hope that helps keep the bubbles down. This is so exciting!
E3: I've been checking back every hour or so, it's blown over again at least once. I guess I should be happy that my beer is fermenting so actively lol. Looks like I'm gonna be swapping out the airlock every few hours today, until main ferment dies down.
The issue is pressure buildup. You're fermenting and generating more CO2 than can escape the capacity of your valve. You could take the plug out, remove the valve from the plug, put a tube in so it isn't into the brew liquid, and put the other end in a bucket of water so the end is always under water. Here's an example, I just got this off the Internet because I didn't have any pictures from doing this myself, but I've done this.
This... stop swapping out tiny airlocks OP, make a giant one from a bukket.