Learn to spell and use grammar properly and decide exactly what you want to do.
We know what "mortisaions" do (or should that be morticians) and I assume you mean rare animals and not rear?
These are two very differnt career paths (I'm not even including criminal profiler) so I would imagine you need to decide which one you want to do the most.
When you have decided, use Google to find what qualifiications you need to do that job, read the job description and decide whether its for you or not.