The cure for caring too much is "i don't care".
I don't care about my job, or my manager, or about climbing the stupid wonky political career ladder.
The solution i found for myself is this : "i don't care, let me just have baby.. and get my 9 months maternity leave from NHS. 2 months full pay, 2 months half pay plus government allowance"
Not bad for a solution at all.. and maybe i have more fulfillment from labour ! :P