Help me avoid being homeless & stay with my fiancé

A few months ago, I left an abusive living situation to stay with my biological mother who I have not seen since I was 3. For a while, we lived with her friend until we were kicked out due to friction between the friend and my mom. We are currently living in an extended stay hotel that my mother pays the rent for while I work through years of trauma and get on my feet. My fiancé, Tommy, is currently staying with us for a few months until he has to return home to the UK.

My mother is having trouble paying the rent and stress from our monetary situation is causing her to become abusive towards myself and my fiancé. She has threatened to abandon us here with no way to continue paying the rent or to send us both to a homeless shelter. Fortunately, being with Tommy has kept me strong even in these times. I want to stay with him and return to the UK with him, or at least find a way out of the situation I am currently in with my mother. I fear I'll have trouble coping if I'm seperated from Tommy and abandoned in a state I'm still unfamiliar with. I have no other family or friends that live anywhere remotely close enough to help.

Tommy makes a bit of money every month and I will soon be getting money from donating plasma, but it will not be enough to cover the costs of getting a passport, plane ticket, and/or paying rent when my mother abandons us. I am also having to sell cherished belongings to make ends meet and to feed ourselves and our little dog. Tommy is disabled and I am still recovering, so we are currently unfit to work.

Any donations will be put towards the cost of getting a passport, plane ticket, travel fees for Molly (our dog), food for us and Molly, and the rent until we are able to move. Any help at all would be immensely appreciated. Even the tiniest bit means a great deal right now.