21 year old girl, lookinf for a 3 to 4 month stay (mid-february 2018 until the end of may) in Amsterdam

I am a optimistic, social person who would love to be surrounded by people. 

I'd prefer to have my own bathroom, but if this is not possible, it's no problem. 

The reason of my stay in Amsterdam is due to an internship I will be having there. The accommodation does not have to be in the center of Amsterdam. 

Public transport in the area would be very helpful.