Certified GKH Gardening Expert
It seems that these are just, simply, annuals. You may try to care for them indoors over winter, but they will complete their lifecycle to seed, then die off. The seeds, however, will create the next generation.
Here is an article for more information: https://www.gardeningknowhow.com/ornamental/flowers/impatiens/growing-impatiens-flowers.htm