The most reliable ways to make oneself miserable are attempting to change people and not attempting to change circumstances.
Carolyn HaxAlmost no one can take on an entire future in one step, much less while reeling emotionally.
Carolyn HaxPlan your own vacations when you want to, and plan a suitable combined vacation with this other family when you want to. If they freak out at your planning your own vacations as you see fit, then let them. Bowing to unreasonable demands because someone will make you pay emotionally if you don't is not a healthy option.
Carolyn Hax