Far more interesting to buy a one way ticket somewhere distant. Local buses and hostels soon make it much cheaper than Europe and far more interesting. When ready, seen enough buy a one way ticket home. Couple of months is a good start but chose somewhere interesting and you'll likely be staying longer (I only came back after 4 months in Peru, Bolivia when my Mum urgently needed to go to (medical) consultant and refused to go unless I took her).
Ian
Ian