By busing tables do you mean you take orders and stuff and have to deliver the food to the table?

If I were you and if that was the job, I'd hold off being inebriated for a bit until your settled

When things get busy, you have to remember who ordered what and with a lot of customers, that could easily get messed up, and you don't want any complaints from customers cuz you gave them soup when they ordered salad

I work with the general public, a very angry general public, if your new and you fuck up, your boss will drop you at the drop of a hat

And your next employer will wonder why you got fired

Just hold it off for a while. until your settled, and you gotta get used to looking sober, and acting sober