You'll get through it. It's interesting to me that this was something we took for granted, that we had to "learn", adapt to, overcome, and so on, and new CFIs that learn and instruct in glass don't even know what we are talking about.
The most helpful part I can think is that you'll learn the "new" positions for the instruments that indicates "on course", the new attitude for "level", understanding where the hand of the altimeter should be to "really" be on altitude. It's my opinion that it really doesn't matter what you train on, you simply have to adapt to it and humans are amazingly adaptable.