I think the biggest problem is actually finding something to aim for. Once you have a goal (getting qualified in a vocational discipline, working in public sector, whatever) then you can make concrete plans. Having done the call centre thing the best thing I'd advise in the short term is to get a job that doesn't involve dealing with the general public on a daily basis.
I think that unless you are doing a job that is conspicously beneficial to society (doctor, nurse, dealer etc) or you are one of the lucky few that can earn a living from being creative then having a Larkinesque take on work is a sign of sanity.
I listen to people my age (mid 30s) on fag breaks having heated conversations talking complete fucking shite about some soul sappingly boring work related topic in language you would have to hear to actually believe and the extent of their corporate whoredom never even vaguely occurs to them. Same type of cunts that have loud conversations on Bluetooth headsets while striding across the carpark. Being bored and hating your job aint all bad.