Russian-English translations for самостоя́тельно

• alone
  I cant ask for help because I am alone
  Jones alone could do it
  She walked home alone
• by oneself
  I have always wondered why shoe salesmen think I cant tie my shoes by myself.
  You ate the whole thing by yourself?
  She sat by herself in the corner, waiting quietly.
• independently
• single-handedly
  She single-handedly organized the whole event, and even set up all the chairs herself.