The fact that alcohol has calories is the only thing that is stopping me from going back into alcoholism.
What would your life be like if you did drink?
It would be hard for me to stay sober
Alcoholism can cause serious problems for anyone, so it's good that you are able to resist the temptation to drink.  However, if the desire to drink is very strong, you may want to find someone who can help you to slowly get over it.
Sometimes I'm weak and I think: I need booze. I need booze. I need booze.
It's okay to have weak moments, you are only acknowledging that you need to work harder. As long as you fight the urges, I'm sure you can succeed and your family would continue to be proud of your achievements.