Here's a question: what kind of worker are you? Do you plan a job, prepare for it and then perform the job in steps or phases? If so, you can do the same with recovery. You can start your sober journey without paid for rehab by investigating outpatient options and free programs. There are options. Finding those options is the first part of the job.
The second part is getting into action: go to a meeting, whatever kind of meeting, AA or non AA, it doesn't really matter, the point is getting to a meeting. And....they are not public. There is a strict code of anonymity. At those meetings you will start hear what people say and start learning about how to get sober. And you won't be alone.
Getting sober can be done, it is being done everyday by people everywhere. But to get sober, you have to get started...good luck, it can really happen!