Looking for immediate help if possible (Casselberry)

Hello.
I was wondering if there's anyone who can offer a room for me and my dog in the Casselberry area? I'm a woman and my dog is house trained and very small.
I can't pay anything when moving in but I will be able to pay up once my taxes come back.
It is still processing and I do not have a date yet.
I'm thinking anywhere between 2 to 3 weeks I should Have them back.
I can pay $150 a week for a room or a little more if it's a studio with private entrance, and will not be able to pay any type of deposit due to me having to get a car.
It's been a series of events that's happened over the last couple of months that has made things very hard for me and losing my car due to the motor stopping working is one of them.
That affected my job as I am in the home health field, but I am about to start back working that on Friday due to the fact that there are finally clients I can reach on the bus.
Can anyone please help me out? Where I am staying now I need to leave ASAP due to it being too much for me to afford.
I really appreciate it thank you in advance!