I'm assuming you want to do Palau because you hear it's a great place to dive and you're a gung-ho new diver.
Which is understandable, but I don't think it's the best choice for your first dive trip. While obviously some new divers go there and do ok, I really think it's better to have some more experience first. You will be safer and appreciate it more. I'd suggest doing some easier dive trips first to start and get some practice.
It's true diving
is generally much better in the Indo-Pacific region than options closer to the US. But if you start with the best stuff you may immediately be spoiled for diving closer to home. Warm water diving in places like the Caribbean and Florida is nice and certainly enjoyable, and at this point in your dive career you will think it is great.
Conditions vary in Palau, sometimes currents are strong and sometimes not. I assume this is partly tied to the phase of the moon and might be possible to plan to a certain extent, though I've never read anything confirming that. Thing is, it's the current that brings a lot of the stuff Palau is famous for, so you would be choosing between strong currents and seeing more stuff, or little current and not seeing as much. And while opinions vary, I think a liveaboard is a better way to dive Palau than land-based, and is something you should at least consider if you weren't. Most people don't tend do a liveaboard as their first dive trip though.
How are you on boats? In Palau you'd either be on a liveaboard or fairly long day boat trips. If you don't know if you are prone to seasickness, it's not the place to figure it out.
Even if you are well traveled, there are some things about dive travel that you need to figure out by doing it. There's something to be said for learning those things on a shorter/easier/cheaper trip so you're better prepared for the big one.