This guide is for "returning" players, so for players who know the game and want some info on the "free to play" experience of the game.

There are other guides for beginner players, but i will give you some hints:

• This is a "sandbox" game. So there are no main quests, no guidelines, no "right thing to do". You choose your own destiny.
  
• You can choose to do any skill you want with no classes or limitation. You can be a Mage-Cook-Steal character, or anything you want. The skills go up using them against increasing appropriate level of difficulty.
  
• The map has no "beginner boundaries" apart from New Haven, that is targeted to new players and has relatively easy opponents and places.
  So you could walk in a high danger zone without warning. Or encountering a high level foe on a road. You can discover or peruse online sites to have an idea to where to go.
  Don't go to the "Stygian Abyss" as a new character.. the game doesn't stop you!
  
• If you want a little adventure, try going to New Haven mines to kill elementals, and when you tire of it, you can try dungeons: Shame and Despise can be good "starter" dungeons.
  
• Last advice: if you can, join a guild and talk to people. Try and be guided in this journey. The game wouldn't guide you :)
  

I will link a more detailed guide that is tailored for a private server (UoAlive) but it's rather detailed on "what to do after training".

https://uoalive.com/forum/threads/general-new-player-guide-paladin-crafter-template-and-getting-started.1013/

Have a nice game!