For those that do use their DAW professionally the obvious thing to do is nothing. Just keep on going until a decent break in work shows up which it will. Then one can investigate alternatives etc.. I think these days they make it easier to try things out too. And even a job comes in, the obvious thing is to use the usual DAW to do it. Then just phase out one and into the other when the time is right. There will be a point where the one that is taking over will be close to ready to handle the types of things that may be thrown at it. Then it just a matter of time. There is also no reason why you cannot just stay with what you have and keep producing great music forever.
I did the change around 2011 so its been 6 years now. You become so strong and solid in using it then anything before just disappears into oblivion. Everything before seems clunky and cluttered. But as
Craig points out, it is not that hard to get into any DAW. They all
very much do the same thing you know. Whichever one you know is the best DAW for you. But that one know can change. See it as healthy and a good thing to do. Changes up all your perspectives. Gets you thinking in a new and fresh way. Your mixes can sound different in many ways as a result. But you can also arrive at a similar mix from any starting point too.