Songwriting can be highly personal or completely collaborative. Some spend a lot of time on every single line while others choose to focus on just sheer volume. The more you write, the better you get at songwriting.
There is no right or wrong answer here. Try things out. See what works best for you.
#SONGWRITING will give you a place to work and organize yourself. Plenty of space to work as well as keeping track of where you think you are and what areas you need to focus on.
It isn't dated. Life is too messy for that. Write songs whenever you want. Wait for inspiration or make it happen. It's entirely up to you.