kingman,
this scheme is applicable to any immigration process to any country.. trust me.. ;)
cases could be different, some take it easier, some take it harder, some (very few) are lucky to avoid stage 2, some never reach stage 3.. but in general the idea is the same, no matter what country you immigrate to.. you will always need to learn new rules and to adjust yourself to the new environment.. some go through it faster and easier, others longer and harder…
try to find a peace with yourself. this is a key thing..

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“You become responsible forever for what you have tamed”. Antoine de Saint-Exupéry