Liver Failure More Condition_symptoms Liver Failure...?

Liver failure...? - liver failure more condition_symptoms

Recently, I was told I had liver failure a week ago. I had all these symptoms of liver failure, and on my arrival in the emergency room, the doctors that I am just in time or have more complications after my liver. I am now in the hospital and I wondered how long the hospital after they found that liver failure would take residence. I asked my doctor said that about 3 weeks want to know why so long? and I am 13 years old, so I wonder how I can improve myself or do I have to undergo a lengthy operation, it is what you do not.
Can someone please help me ......