The shortcut for inserting a footnote in Microsoft Word is:
for a Mac: control + command + f
for a PC: alt + ctrl + f
Consider using the index in the back of The Bluebook to see if there is an applicable rule on a particular resource. I didn't know there was an index until I had been a law librarian for two years!
The Bluebook exercises you did as a 1L in your legal research and writing course focused on the blue pages. Law review articles and academic papers you write for law school classes use the white pages. One main difference is that case names are not italicized in the full case citation in a footnote. They are italicized in the main body text. They are also italicized in short citations.
While there is still currently some debate on this area as scholars think The Bluebook is ambiguous, most agree that URLs should not be hyperlinked.
When in doubt, include the (un-hyperlinked) URL at the end of the citation. It is easier to delete a URL than it is to go and find an article or webpage online later without a URL. I personally like to add URLs to forthcoming works if URLs are available as well.
If you want more help with The Bluebook, consider doing The Bluebook exercises on LexisNexis Interactive Citation Workstation that are for law review. These are all the ones that start with "17." There are five categories for law review: Case Citations, State and Federal Statues, Legislative and Administrative Sources, Secondary Sources, and Short Forms. The screencast video below shows how to access this.