I stopped at 4 tonight because sometimes I find that the warm ups can make me feel less confident in my lines, like if they arent going exactly how I want t hem I start doubting how well I'll be able to draw
But I've come to realise that unless I'm totally blocked, once im warmed up im good to go regardless and if these didnt do the job then the first drawing probably would.
And honestly every day cant be an amazing art day and once you accept that and just draw through anyway i find myself less hampered by art block-ish days in a way