@Fuller, you can do this. The bumps are calling you. I'll pretend I'm your instructor.
Do all your practice on the same bump run, the easiest one. Not the anthill, do this on old "seasoned" bumps. Assign yourself two runs on that trail for every single day. Two runs, no matter how icy. Ice bumps are good teachers. You can learn to do this on ice bumps if that's all you've got.
Your goal is to ski SLOW. I mean that. SLOW. The slower you can go, the more consistently you can stay slow, the more skilled you will become at controlling your skis and their travel. Going slow will eliminate the runaway traverses. Going slow will give you time to pay attention to what your feet and skis are doing so you can control your turns. Going slow will stop those Oh S#*t!! moments from happening. Going slow will allow you to build precision balance and control of your skis on that lumpy surface.
How to go slow becomes the question, should you choose to accept this challenge.
The answer:
Side-slip down one bump at a time. Only one. Only side-slip.
Stand on top of bump #1, side-slip down it. Point skis to your left, keeping pelvis and torso and both arms pointing downhill. Scrape to a stop with skis still pointing to the left. You'll be on top of bump #2. Did you travel left or right?
Try again, your goal being to not travel left or right. Lock your eyes on the spot where you want to stop, straight downhill of you, on the top of the next bump. Side-slip, scraping to a stop, hopefully ending on that spot you're targeting with your eyes, with skis still pointing to the left. Did you travel left or right? Try again to the next bump.
Keep skis pointing to the left and work on side-slipping one bump at a time, stopping on the next bump where your eyes are locked. You're working on not traveling left or right, going slow, stopping on target.
Important note: Plant your pole firmly, then keep both hands and arms forward and downhill after the plant. This will help with keeping the torso pointing downhill. Going slow will allow you to pay attention to this important element. Going slow will help you pay attention to each important element. Here's the list:
1. Side-slip slowly, skis pointed to the side, torso pointed downhill.
2. Stop on the targeted spot with eyes locked there.
3. Plant pole and keep both arms forward afterwards, to keep torso pointed downhill.
4. Eliminate left-right travel.
At some point during the run, turn the skis to point to the right and continue sideslipping with skis pointing right, stopping after each bump. Do this slow exercise till you get to the bottom, with only one or two switches from left to right.
Do this exercise on the same run two times each day, preferably twice in a row, working on eliminating left-right travel, working on stopping after each bump at the spot your eyes are locked onto, working on keeping pelvis and torso pointing downhill.
Once you sense you are improving, change the direction the skis are pointing a little more often during a run. Sensing clear improvement should take a week or two of daily practice. Report back. Once you can do this exercise pretty well, you'll be ready for the next step - linking SLOW pivot-slips down this same run.
There's a lot more to bump skiing, but going SLOW while staying on your intended line is step one and should not be skipped. This slow exercise is the best way to stop the runaway traverses and eliminate gaining speed as you head downhill. Once you can go slow, you will no longer need that Exorcist.