Hello and welcome to the forum 
I use daily note workflow for work by having a separate “WorkLog” list and creating day-related sub-nodes there.
In Checkvist, you can use Cmd ; keyboard shortcut to insert current date, so you can press Enter to add a new item, Cmd ;, and Enter again.
On Windows, it should be Ctrl ;, if I recall correctly.
Hope this will work for you, please let me know if not
Oh, and here are some more shortcuts for formatting.
Best,
KIR