If you're drinking whole bottles of vodka neat while you're the sole adult responsible for a child I think pretty much anyone would agree you have a drinking problem.
It's not so much "weird" that you're waiting to get worse before you get help. To me it just sounds like you're in denial and don't really want to stop.
It will be hard to stop if you're not ready, but coming here to explore your options and get support is a great first step.
"Trying out" various addictions can be a cry for attention, and can also be incredibly dangerous. Sounds like you need to get to the root of the problem that makes you want to do these destructive things to your body. Does your family provide any support to you?