As judy has said there is no guarantee that introducing a second bird that they will get along.You have had your bird for 14 years,is she the only bird in the house ? if she is then i think you may have problems,at 14 she will be very stuck in her ways, she will be used to routine etc..She may never accept another bird, but given time she may tolerate another bird.Be prepared you wil have to introduce them slowly, cage them separately, divide your time equally, this in its self may cause jealously with your existing bird.There are so many factors to consider, but saying all that they may get along,no one can say 100% what will happen.Good luck in whatever you decide, just be ready for the ups & downs.