Hi everyone!
I’m new to this forum, not sure if this is the right place to ask the questions I wanna ask, but I would still appreciate some feedbacks.
I’m planning a trip to Europe next year, hoping to stay for 8 months to one year. I intend to spend a few months working, just to put a few more hundreds to the budget; and the rest traveling. I have Canadian Passport, and I’m 21, which means I should have no problems with obtaining a working holiday visa. My question is, for those European countries that do not have this option, do I need to apply for a visa? (please keep in mind that I’m planning to stay for quite a long period of time)
I’m aware that there is something called Schengen visa, it allows the visitor to travel freely within its member countries for up to 90 days. It wouldn’t possibly be 90 days for each country right? What can someone do when the visa is expired? Can you renew it? Or you simply have leave?

Thank you for your time.