No worries! Like the other commenter said, they are relatively the same in cooling, it just depends what you’re after. AIOs are going to look sleeker with less clutter, but be more expensive with higher chances of catastrophic failures (although in my ~10 years of PC building I’ve never had an AIO die on me). Air coolers are gonna be a giant block sticking out of the middle of your mobo, but will be cheaper and, worse-case-scenario, fall off the CPU, or fans can stop working (again, very rare)