I am glad you are not running out for more! Haha, it can be a juggling act but is also very rewarding. Personally I believe my birds give each other more attention than I EVER could, but that does not replace time with me. They each have different personalities and different needs, which helps. For example, not all of mine are tame, some are breeders. These birds get lots of space, lots of toys, lots of variety in food, and only verbal interaction from me during breeding season. In the off season they get all these things plus some target training with lots of rewards.
But for the tame birds it is an issue of making time. In a lot of ways I dont "have birds in my life" so much as "birds are my life." It takes a lot of dedication. Other than birds I have a husband and I enjoy writing, but most of my other hobbies have fallen by the wayside. There is also something to be said for simply letting birds spend time with you, in addition to focusing on spending time with them. Right now I have 2 fully flighted tame birds, and more are molting right now. A flighted bird is free to spend time with you whenever they please, because they are not stuck on top of their cages or on a stand until you go get them. Scout, my male IRN spends each morning with me as I feed and water and clean cages. I have a lot of birds that eat fresh food, so it can take an hour or more. I don't have time to sit and snuggle him right then, but he enjoys the process, flies ahead of me, hovers over my head, tastes everyone's food, etc. So Scout gets an hour of time with me just because he wants it, but it doesn't "take up my time." Also, Flick, my first GCC loves to sit with us while we work on the computer or read. She will sit in our laps if she wants scritches, but a lot of the time she just wants to "hang" and will chill on our shoulders or on the back of the couch. She is also harness trained (we are working on that with Scout) so she can go with me when I have a "pet store day" and when I walk the dog, so sometimes she and I will spend hours out and about the town, which she also loves. Cache, my yellow-sides GCC is a snuggler and just wants to cuddle, so watching a movie is easy "free time" for her. You have to make time for them no matter what, but choosing birds that fit well in your schedule and lifestyle, and looking for ways to include them in your day in addition to the time you take "just for them" makes it much easier. I imagine it is similar to having multiple children, though I don't know from experience.
Basically it is about making sure you never have more than YOU can handle, and finding the right birds. I doubt a Macaw would be an ideal fit for my home, and I KNOW a too would not be. Amazons or Greys or Eclectus MIGHT be a fit, but right now we are not looking for another bird. You just have to know your family, feathered and human. Oh, and along those lines, furry pets and kids effect what you can handle as well. My dog has been around birds since he was tiny, and a lot of strict training, dedication, consistency, and research about dog psychology has allowed us to have him and our birds out at the same time. Homes with pets who cannot be trusted (this is MOST furry pet homes!!!) will most likely not be able to have as many fids without neglecting their furry pets, who also deserve our love and attention.