Don't feed your anxiety. Slavery was abolished in Canada long ago. Nobody can force you to live where you can't or don't want to. You have the same rights as any citizen, except for some exceptions and freedom of movement is not of them definitely.
There's no such thing as a renewal;, you need to male a new application.
Parents should provide proof of their personal funds, not yours.
Invitation letter is not a requirement for TRV.