Good to see you, LuLu.
You can definitely get through this day without taking a drink.
The really bottom-of-the-barrel garbage feeling of hangover will likely go away in a few days' worth of sobriety.
I hope you are able to take the long-term view: you are unique, and your life has a purpose and real value. There are gifts and viewpoints you bring to the table that nobody else can.
When you embrace sobriety, the key is not just giving up drinking. There is more. The ultimate by-product of recovery is not the complete deliverance from hangovers and screwing up. It is becoming a serene, competent, confident person who stands free and has nothing to hide.
That's the goal to shoot for, LuLu!