Can I Get a Tummy Tuck While Awake?

Tummy tucks are normally done under general anesthesia, meaning the patient is "asleep". I personally have not had any patients ask to be awake, and I would not recommend it. There is a lot of dissection involved, and it is ideal to perform this in a controlled environment.
If all you needed was surgery on a small or limited area, then performing this while you were awake would be reasonable. In that case, you could be given "local anesthesia" where the area that was worked on could be numbed up with injections, and you could be given medications for sedation to make you more comfortable. Another type of anesthesia is "regional anesthesia" such as an epidural, where a numbing medication is injected directly into your spine.
Keep in mind each type of anesthesia has risks and benefits, and the decision should be made between the patient, anesthesiologist (or trusted certified anesthetist), and the surgeon. In any case, you will still have a cost for the anesthesia, and it is best to have your surgery under conditions that are ideal for you and your surgeon.
I would recommend consulting with a board certified plastic surgeon to determine what procedure you really need, and what type of anesthesia would be the safest for you.
Good luck!

You must be administered some type of anesthesia during any type of
tummy tuck to ease pain associated with the surgery and to allow your
surgeon a wider range of access. In the great majority of cases, tummy
tuck surgery is performed with the patient under general anesthesia. You
will be asleep if general anesthesia is administered and, in my
opinion, will find the procedure to be more comfortable and pleasant.
Still, it is possible for a mini tummy tuck to be performed under less
intensive local anesthesia, with the patient “awake,” should find this
option preferable for you. These are options you should discuss with
your surgeon at a consultation or pre-op appointment

It is not recommended to have this procedure performed without being put completely under general anesthesia. It is a very complicated surgery and it needs to be performed correctly.
I believe you will compromise your results and absolutely don't recommend that you do this.
I perform tummy tuck surgeries 2-3 times a week and could not imaging EVER offering to do it for a patient and not going under general anesthesia.
Please choose your surgeon wisely.