She did have resources to make use of to sustain herself, but she would have had many other difficulties to overcome that could not be achieved without the support of others.
The only reason why Cedric and the others had made it through the night was the result of their being able to look out for each other and take turns to watch over each other as the others slept.
The same situation would end up being a major disadvantage for her, especially if she were unable to get any sleep, and that would end up tiring her out more and affecting her mental and physical state.
Even Ash was somewhat relieved to encounter Cedric and the others during such a time, as it was a way of increasing her chances of survival.
Not every person that could have been encountered would have increased the chances of survival for her, but they did, and that was all that mattered.
