There is no shame in rehab. If that is what it takes for you to get sober, you should do it. If you were diagnosed with a different ailment like cancer, would you feel shame about seeking medical attention? Alcoholism is a disease, and one that is hard to overcome.
I understand that you have family & financial obligations to meet, and rehab may not be the best option as a whole. If there are other options for you to explore, then try those as well. Many people have stayed sober through this site alone, or a combination of this site plus the odd meeting.
There is always a way, if there is the will to get there. Sounds like you have the will, and it is just a matter of finding the right way for you given your circumstances.
It's great that you took the first step and joined the site. Best wishes to you, and keep posting.