Do you have any advice for a newly awakened Sable therian?
Hi! Congrats on finding your identity! :3
As for advice (a lot of this is general/not sable specific advice):
Try literally anything you want. Eat like a sable, wear clothes in sable colors, try on gear, do quadrobics if you feel like it, etc etc etc. If it sounds fun and seems like it'll help you connect with your identity more then there's no harm in (safely) trying it! (Obviously avoid doing dangerous things like eating raw chicken or trying to jump 3 feet in the air on your first try doing quads.)
Related to the last point, don't force yourself to do anything you don't want to or don't enjoy doing or causes you pain. If quadrobics is hurting your arms or a tail is giving you a rash then stop doing it. That's completely fine and your health, safety, and comfort come first.
Remember that therian social media is extremely skewed in favor of therianthropy, and that all therians have hobbies and interests outside of just being a therian! I made the mistake of trying to make therianthropy my entire identity when I first awakened and I ended up completely miserable because of it - so I try to help newly awakened therians avoid that pitfall lol
Relating to the first point - just... do stuff you want to. Make that stimboard, design that mask, wear a tail, whatever you want. This is a community based around identity and there are essentially no rules (other than the obvious 'don't be a bigot or a creep' lol).
If you're looking for specific gear recommendations, you can find cat mask bases here, (I personally realized recently I don't really like wearing masks but I know other people like them lol) and I'm not too sure on places to ethically source real tails from as all of mine were second hand, so you're probably better off asking someone else. (Thrift stores are a good option if you're looking for fur in general.) You can also find custom animal ears all over etsy, but I can't really vouch for that in terms of quality because I've never bought any.
As for food, Sables are primarily carnivores so you're going to want to lean towards meat-y things if you want a more sable-like diet. I really like rabbit the few times I've had it, and if you want to feel a bit more connected or whatever you can always eat meat off the bone in the form of drumsticks or wings.
My favorite non-meat options are: Mushrooms, berries (including preserves and jams!), nuts like pine nuts (sunflower seeds make a good substitute), eggs, leafy greens such as lettuce, and anything with a crunch to it makes a pretty good insect replacement (or you could get dried insects but. pricey lol). Also I've mentioned this before but I LOVE pasta and noodles because they remind me of worms which is kinda gross but whatever XD
In terms of clothing: THICK stuff helps emulate fur, as does... actually wearing fur (faux or real) (love sweatshirts for this reason). Go for browns and tans to near-black coloration if you're looking for specific colors - really just look up sable pictures and match your clothing to that.
I haven't done quadrobics in months so you might have to ask someone else for advice on that one, however: Go SLOW with it, take your time, don't do anything unsafe, etc. Your wrists are FRAGILE and need to be protected.
That's all I can think of rn - I hope this helped, and good luck on figuring everything out, anon! :3