if you are having macro problems at low level, you want to take out the heart essence in the macro other wise it will lock up your game action bar which will require you to log an log back in.
PS: i recommend this macro since i have the best results then any other macro’s Elfyau's 8.3 Frost DK Macro **Updated 8-Sep-20** - #45 by NoobSlayer
i have edited this macro to fit my play-style but you can either use it as is “plug & play” or edit too your play-style. Also the updated version is the very first post which is at the very top. but do not forget to remove the heart essence.