How can I get my hotmail account back ?

I cannot login outlook.com or Skype or msn messenger with my hotmail account. The account name is "*** Email address is removed for privacy ***"

I think it maybe because I haven't login this account for long time (around 1 year).

But this account was registered around 1999 and I used it for 10+ years, there are so much important contacts and emails in it. 

Is there any way I can recover my hotmail account ? or just allow me login messenger/skype with it ?

Very appreciate it anyone can help.

Thanks !

Best Regards,

Jackie Ju