Do you know the name of your fig?

Photos of the white spots? the brown leaves indicate overwatering. No need to close the blinds either.

What it looks like is that your knife wasn't sharp enough. Also I'd never use a knife to prune. It is hard to get a clean cut (if it's not a clean cut it can take longer for the plant to heal) and can easily introduce disease and infection if the tools are not sterilized beforehand. For such thick stems use a pruner, you can buy them at home depot or lowes. To sterilize your tools, get a blow torch and heat up the blade until it gets red and then let it cool off. It goes without saying that you should choose a pruner with a blade that is pure metal, not the kind of hybrid plastic ones they have nowadays. I wouldn't necessarily prune any more off. The problem is that your ficus began branching too late and now whatever you do the tree is still going to look top heavy indoors since it can't get any taller than that.

Update: I realized that I was allowing myself to become very stressed over this plant and so I decided that it is okay to lose a plant now and then, and it must inevitably happen to someone on the path to garden mastery! So here's what happened: Since the top portion of each stalk was by far the healthiest part and hadn't started visibly degrading yet I figured that now would be a good time to try and propagate. I cut off about 6 inches or so from each stalk, removed the bottom leaves of each cutting, and cut the top two leaves down to half-size. I coated the bottom of each stalk with honey and then planted them in a freshly mixed, and moistened 3:1:1 of bark, peat, perlite. Then I covered them with a clear plastic bag (from the produce section!) put a small stake in the center, and sealed the bag. The stake holds the bag up and I could see condensation forming almost right away. It is now sitting comfortably in a warm, shaded position and I will check on it in a month or so. (I will check for moisture levels in ~2 weeks. Now instead of experiencing feelings of failure and dread at losing a plant, I am full of optimism and hope that my cuttings will become beautiful, healthy plants! I also repotted the parent plants and cut the roots down to about 1/2. They all looked healthy still so I am now beginning to suspect nutrient deficiency and underwatering as the culprits. I have some Dyna Gro Foliage Pro arriving tomorrow which I am very excited to use from now on. Not sure if I should continue with the seaweed/plankton liquid I have been using or not. So for now, I am happy and content with what I have learned and will post pics whenever anything exciting happens! This leaves me with one lingering question... What soil mix should I use for my tropical plants? Philo, calathea, arrowhead. Is 5:1:1 good for them? Or should I lean more towards 3:1:1? I'd love to repot soon (next weekend) once I am confident in the formula. Thank you all and happy gardening!