Put in above ground pool that needs to be plugged on a ground interrupter plug in but we have no free breakers in our breaker box. Need suggestions. Can we put an unused bedroom on a breaker with another room so we would have a free breaker to run this ground interrupter on. Just need help

I believe the pool has to be on a dedicated circuit. If you have full size breakers, one could be replaced with a tandem or two 1/2 size breakers this would give you the needed circuit for the pool.
There are special rules for electric near pools. I suggest you call a qualified electrician to insure the job is done safely & in compliance with code.

I am a firm believer that pool wiring should not be done by folks with little to no experience.

Please call an electrician. There is far more to it than simply plugging in the pump.