We had the same issue with Denna... she'd do anything IF she saw the treat first.
But... it's a way to start and get the dog to know the vocabulary, so when you ask for "sit", you know they know what you mean.
I'd keep up with the bribes (treats) for a while until you know she knows what you want. Then you can start upping the ante, so to speak - make her do TWO commands for one treat, then three, etc. Make sure you do PRAISE for each correct command, but the food reward becomes more random.
You can also do some "focus" training...
Let her see that you have a treat, and hold that treat out to your side away from your body. Do not let her have the treat, no matter what she does, until she looks you in the eye - as SOON as she looks you in the eye, say "GOOD"! and give her the treat.
This teaches her that the treat is coming from YOU, and that she must, basically "ask" for it by looking at you (and away from the treat).
Once she understands that keeping her eye on the treat isn't what will let her have it, making treats more random at other points in your training should get easier.
One trainer I had suggested we place piles of treats around the house - and treat randomly from those locations (after asking for or seeing a behavior worth rewarding) - so the dog never knew when or where a treat might appear. Keep them guessing!!
It will get better - soon the expectation of a treat turns in to the anticipation of a treat, and then you can really tone them down (randomly giving treats, but more infrequently), so they're really just 'rewards' and not 'bribes'.
You can replace the treats with more praise and pets and games of tug, and other good things instead, too, which will help build your bond with the pup, too.
Sounds like she's a smart dog - which can make it more challenging.
Keep it fun (for both of you) and that will help, too.