I'm so sorry you're having such a rough time. Treatment facilities can be awfully expensive. There are many of us who managed to drag ourselves out of that deep black hole without rehab. It is possible, but, in my mind, it's necessary that you have a lot of face-to-face support.
Do you attend AA meeting? Celebrate Recovery? Study AVRT's program? There are a lot of free services out there, but sometimes they may be hard to find.
I wasn't able to go into an inpatient rehab facility, but I did go through a medical detox and then moved into an IOP program. But, even with all those options, some people just never get it. The power to overcome this resides in YOU.
You can do this, Dominica!