Hi figgywig,
At some point, let the tree do her life. Don't move her around too much.
The Autumn will come soon - well it is already here but let's be positive -, and the tree will start to go sad looking - don't panic, this is normal.
If the weather is dry, give the tree 10 liters of water twice a week, if you've got rain, check the dirt around the tree, and give some 10 liters of water once a week.
Be patient ! ... Start looking for a new spot for the next fig-tree :°°) ... That will keep you busy .