Yes, you can. It's considered "non-business bad debt" and counts as a short-term capital loss. You can read about it on the IRS page here: https://www.irs.gov/taxtopics/tc453
In Turbo Tax, you can find where to enter the loss under Personal/Deductions/Uncommon Situations.
All the best to you in your next phase! And you're smart to ask if there's a way to write off this loss. Not sure why you got a different response in another reply.
