i am resident in poland and i want to travel to Africa from Germany. Is it possible to go the way i want?

what i mean is if i can exit from any airport in EU to my destination. Not visa wise but immigration wise. Or i have to exit only from where i am resident?
I am a citizen of Cameroon residing in Poland. I want to visit Cameroon again. Do i need to go to Cameroon only from Poland or i can use any airport in the EU zone to go to Cameroon.? I hope my question is well understandable now

I don't understand what you are asking? Do you mean visa wise is it possible or flight connections?

And what way would that be, stop off in UK for about ten years and take another brit's job?

I do not understand your question; with a Polish citizenship you have a EU passport, haven’t you?
Well, what is the question?
You can go as you please within EU. '
About Africa, you have to specify your question.