Some things you should know. No one goes into psychology to make money. If you look at all of the job statistics websites, psychology careers do not pay a lot, maybe they might pay an average salary. Maybe.
A psychology salary in israel is probably even less than in the usa.
So why do people invest money into psychology? It is because they are stupid or want to help people, and this is the best way to help people.
I do not know of any special fields for special needs psychology. Mostly it is ot and pt etc… But possibly who knows.
If you want to live in israel, then i think you should go to college there. Not because it may be free, but because you want to start off and do everything there. You want to date there, find a college there, do everything. If aliyah is what you really really want, then make aliyah first and do everything afterward.