I've got 5 years of experience as manual/automation QA engineer - 2 of those at Apple. I'm pretty bored of it now and I'd like to try out my hand at the 2 careers mentioned above. Have you or anyone you know done this before? Any advice? Any courses or things you'd recommend before I take this leap? The only thing I'm scared of is if I don't like it, it'll be tougher to get back into a technical field.