My RB Mytsi was 11 when she was spayed and it didn't change her in the least. I am sure you will still have the sweet fluffers you have now. I know I am like a broken record and I know you are getting her spayed but it is for her own good and can help with health problems such as some cancers. We live and we learn. Just like you I didn't no anything about the health risks until later. But fortunately you know now and that's what matters. Now when I get a cat they are spayed at the appropriate time. I want to prevent if at all possible anything that may be preventable on my behalf. Lilith was spayed at 6 months. Actually she was spayed on her six month birthday. Vixen was just over a year as she was sooo tiny and she was over a year old before she had her first heat which lasted 1 day. When she had her first heat I made an appointment to get her spayed. You are doing the right thing for Fluffy. Good for you and good for Fluffy too.