So i recently ordered a new tablet mainly just for Osu! (CTL 490), but i've never actually used a tablet before.
So got any tips or advice? (Like how i should use it, what software i should use etc..) ┐(￣ー￣)┌

immerse yourself in gameplay at a heightened duration as compared to preceding sessions

Welcome to tablets!

Wacom should come with software for you to install the tablet driver, so don't worry about that for now. They're also accessible on Wacom's official site should you ever need them.

You want to adjust your play area of the tablet to what you're most comfortable with using the tablet software.

Just try and around and get a good feel of the tablet. You can hover or drag your pen to move, though I think for the CTRL-490 is works better in dragging?

Most importantly, have fun.

let the aforementioned seep far within and, lest we forget, to comb over what we ingest to let us settle our course for ourselves

- Full-area can provide better accuracy initially/overall, but it causes you to work/move more.

- Smaller-area is the opposite; you can have worse accuracy initially (and improve over-time), but it causes you to work/move less.

- I don't know if there's some scientific method for finding a "good" area if you aren't using full; you'll probably just want to find a good one by messing around with it. Just note that osu!'s circle area regardless of in-game resolution is a 4:3 square.

- Getting used to a tablet area and then changing it will likely produce lower scores initially. This either means you have to get used to the new area, or you just can't physically/mentally use it (changing the area isn't guaranteed to produce good results all the time).

- You'll likely have best results with osu! if you do not install any tablet drivers under Windows. Wacom's drivers in the past (may still do?) add some latency and other interaction/gestures with the pen movement which isn't useful for osu! (but might be useful for drawing and etc).

- Under Linux, if the tablet doesn't "just work", if it's a Wacom tablet, most distros provide a xorg wacom driver you can install. Gnome Settings also provides a nice GUI tablet manager app, and I'm pretty sure Plasma 5 does too. There's also some cool command-line stuff you can do for tablet management (mapping or disabling buttons/taps, area) too if you want to be able to have a consistent set-up.

I use full-area with a Huion H420; I find full area fun, and imo it looks cooler to spectators :p I also use Linux where my tablet "just works"; Window 8.1 and 10 messed with my tablet far more than I cared for (between tablet gestures and USB power saving/polling rate mucking).