Have you been in charge with aliyah promotion groups, like (I think it’s called) Nefesh b’Nefesh? They can help with practical advice.
There are some articles you want to read. You may find them by googling Leah Kuber and Yair Spolter. (Rebbetzin and Rabbi respectively.) They’ve written articles about making aliyah, difficulties with certain age kids, etc. There are SO many factors. While you may get some good direction here I urge you to find groups where you can exchange emails, etc. for better and more direct communication.
Hatzlacha! May we all get there soon!