Breast uplift ? Is it recommended for me?

So my surgery day is tomorrow, I’m going to get a cat eye /cheek lift with fat transfer and upper & lower blepharoplasty I also would like my breast bigger and seems like a good idea to do it all at once and get it over with, Is this a good idea? Also I currently have 500CC in, I want to go larger ideally 800cc Doctor thinks I will be suitable for uplift however 800cc will be too much to do alongside and uplift? Why is this? And do you guys reccomend I do uplift with slightly bigger implant? Or should I do 800cc alone? Or none at all?

I’m not too unhappy with where my boobs sit, I like that they sit and look more natural in terms of that but I would like bigger, I do worry about them sagging more though (For reference I’m 22 and no children, my boobs dropped a lot after my last augmentation due to weight gain and loss) Any advice would be appreciated