Room for improvement

so...
i have decided to direct my attention to the increasingly squalid conditions in which i live and re decorate my room.
this seemed like a good idea some 2 weeks ago and still does deep down while im sanding away at the ceiling with the power sander and inhaling what is almost certainly carcinogenic dust as it falls in vast quantities from the ceiling.
truth be told i should have listened to fat john when he said in his infinite wisdom "plastering ceilings is very difficult" and yes i should have listened to the man in jewsons when he said in his learned opinion "plastering ceilings is a bitch of a job" but no. in my arrogance i blundered through and 2 weeks and 12 litres of 'b&q plaster repair and skim' later and where there once were horrible artex stalagmites there is a lovely smooth ceiling.. well pretty smooth.
next on the engender is choosing a colour. this sounds easy but turns out to be a lot more difficult that you'd think.
i wanted green and white because i like those colours however you cant just go in to the shop and have a 'tin of green' no, they have some lovely lime zest 4 or you could have some forest fern 6? or maybe if those don't take your fancy a splash of kiwi dive 2 can never go a miss....
this is insane! even white isn't a simple process, theres hessian white, creme white , rum white, kiwi white and i could easily go on so i will lemon zest white, lime white, aqua white blah blah blah.
as you may have realised i am obsessed with perfection with these kind of things so it will undoubtedly be a masterpiece when i do decide on a paint but seeing as the ceiling has taken 2 weeks i shudder to think how long my ambitions plans of an insane desk with computer screens rising up from it will take.