i am not sure abbout the ways where you are but in the UK unpaid care givers can claim carers allowance, which is supposed to make up for the loss of wages but in reality is no where close.
there may be benefits you can claim as a caregiver, there may be money available for the disabled person to buy in your services ie pay you for what you do even if it is a reduced wage because you are residing there, there may be charities willing to help out either with volunteers for the care giving to free you up for working or with finance to either help you back to work or to buy in other care givers to free you up