Christine, I know that it can be frustrating not getting a better job offer yet but keep your chin up. Remaining confident will help you land that new job.
Since you are living in a hotel, you are technically homeless. This will give you the opportunity to apply for additional rental assistance through local organizations. At $250 a week, your hotel room is costing you $1,083 per month. That is why you have nothing left to save for a deposit. You need to get into regular housing as soon as possible. I recommend contacting Seminole County right away to see if they can help you move into that cheaper home that you found.
You may also want to contact The Center for Affordable Housing (TCFAH) in nearby Sanford. There are 20 transitional housing units that are designed precisely for your type of situation. It allows you to stop overpaying on rent, to save for a deposit and plan your permanent move. You can call them at 407-323-3268.