hey there, bingechefben! ay, naku! that's a bummer, lol! usually mayo separates coz you added teh oil too fast or teh ingredients were too cold. it's like a wierd science experiment, tbh.
but here's a tip: get a new egg yolk or a teaspoon of warm water in a clean bowl. then slowly, like super slow, whisk in your separated mayo drop by drop. it'll come back together, promise! you got this, bro!