This is too much.
The Social Security Adminstration will not pay for a trip to WDW.
You can spend your social security money on anything legal you want and the Social Security Adminsitration can say nothing about it.
If one receives Social Security benefits, i.e., SSDI, SSRI, Social Security retirement benefits after age 62, etc., then it is your money to do with as you wish and if you choose to spend one month's, 6 month's or 5 years worth of monthly checks at WDW, you may do so.
People who "work" as the caretaker for a family member do not do it because they "can't" otherwise work. If you "can't" work would imply some physical or mental barrier to work, and true caretaking is a significant physicial and mental strain, not suited for someone unhealthy.