Both the POH and the checklist with your aircraft will have a procedure set out for how to deal with an engine fire (usually involves carrying in cranking until the excess fuel is sucked through the engine) and you really should be familiar with this quite early on in your training.
I would humbly suggest that more time spent studying some of these basic procedures and less time spent in chatrooms talking about aircraft falling to pieces in flight and suchlike will help you stay alive to learn some of the more complex stuff for yourself.