I clicked on "Email my Enrolment Advice" and it sent me a email of this timetable, is this my actual timetable, because I've seen other people timetables looking different.
The email sent to you should just be a document with the confirmation of the units you have been enrolled in as well as other details.
If you want to view your timetable you need to click on "My Classes" and it should be the first thing you view. On the other hand if you want to /get/ your timetable - screenshot that page (or create your own version in microsoft word/excel)
It's up to you, it won't be counted as a clash I think because lectures aren't compulsory. You might be able to do practical switches at the end of the first week since sometimes students like to change classes, but this has to be a mutual agreement. If worse comes to worst, you might have to just attend the practical and catch up on lectures online.