Hi Anie, I do not really have an answer for you but I can tell you are not alone. I am also going through something very similar and I am at a loss of what to do, whether to finish university or go back to a job that I do not really love.
I commend on you wanting to stay at work so you can look after your family that takes a lot of strength. But remember you do have to look after yourself, however, you may do that.
Friends are also a tough one and I am struggling to find people to connect with without alcohol as I am in the same boat as you with having the same friendship group since high school and alcohol was always something that was in our group so I understand where you are coming from. I do not know how explicit you have been with your friends but I have found that is the only way to get through to them, other than that it might be time to seek some new friends and I can tell you as a 27 year old that it is not easy but there are people our age who do want to find new and like minded people to hang out with.
Stay strong, I hope something in here helps you. Reaching out is the first step.