If you do restart, blitz the two rebel towns to the east with all your starting units except for one family member left to govern Baktra. Also send an emissary to the Sakas to make peace.
Queue up some phalangists as reserves, in fact queue up as many units as your treasury allows because you will go into negative numbers in a few turns anyway because of the army upkeep.

Take Gava-Haomavarga first simply because it's the toughest of the two settlements. You want to do that with fresh troops. You will probably be attacked by a roaming rebel army full of horse archers as well before you reach the town, but stick to the forests and let them impale themselves on the pikes. After the town is sacked and all population massacred, destroy any non-usable buildings to make the treasury go up to around -6000. :)

Then march south and do the same with Kophen, which should be easy enough to do with the remainder of the first army plus maybe one of the reserve units from Baktra.

After this I normally disband the army and leave one phalanx unit and one archer unit in every town, maybe two phalanx units in Gava-Haomavarga since the Sakas are unreliable.
Then wait. The income will be around 1400 per turn so it will take some turns to get out of debt. :)