Hello m'lord!
Could you please clarify what 'your warrior' is? If it's your profile picture then try to following:
Situation 1 - The Forums:
- At the right-top of the page, you should be able to see a button saying 'Profile'. Click that.
- Click your current profile picture, and choose your image!
Situation 2 - In-game:
- At the right-top of the page, you should be able to see your profile picture. Click that.
- Then once again click on your current profile picture and choose your image!
Good luck!