hi
i will try to help u as much as i can
1. you can feed her it will increase her chance of successfulness with her colony the best thing to feed her would be a high sugar concentrate such as honey water but add extra sugar this will give her an energy boost.
2. you can add brood to her if you wish see may not accept them they best to give her would be cocoons as they will develop sooner try to give her a similar species of ant so give her lasius flavus cocoons
3. try not to stress her to much i would recommend only looking at her once a week if you plan to give her cocoons to see if they have hatched
hope that has helped
Sithmaster676