Hi Anon Welcome
I also think that a medically supervised detox would be a great idea. Detox by yourself is very dangerous and absolutely miserable. Doctors normally will give medication to reduce the likelihood of a seizure and make the whole process much more comfortable.
With the consequences you have incurred already at 20 I hope you get in a recovery program right away. AA came by the hospital when I was detoxing and offered help. I have been sober since and have absolutely no desire to drink today.
Please stay in touch and let us know how you are doing.