This A Level Art sketchbook page is beautiful in its simplicity: devoid of all superfluous decoration, it shows a dedicated and committed student learning a technique from an artist and then carefully applying this to original artwork.
How to Paint and be Brave with Watercolour article by Jean Haines. Warming-up exercises she recommends before starting a serious painting. Ways to overcome being wary of colour. These ideas might help with moving toward abstract painting.