Most players will straight up tell you to stop trying to be creative and just make a cookie-cutter build. And it would probaly be the “best” advice indeed.
IMO, one of the main draws this game has is the class diversity, so I’m against just brushing off anything that isn’t the “meta” builds.
With that said, these cookie-cutter builds are GOOD. They have been tested and they surely work. More importantly, they have been optimized with current end-game in mind.
Now for your build, I’d say you are trading a lot of firepower (wiz3) for heavy CC (Cryo3). With this your DPS will be inferior to a “true” elementalist, and your CC/support won’t be nearly as good as a CryoKino/Chrono. BUT you will have a bit of both, being sort of a hybrid. Personaly I’d move a bunch of points around, like away from Meteor, but that’s up to you.
Hybrid characters are a lot harder to build, but most importantly, they are harder build a party around. Sadly, most people will focus on what you are lacking, instead of what you are bringing. Frost Pillar but no Pass, Frost Cloud but slow Meteor and no Dark Theuge. This could cause some frustation later on when looking for parties, as “pure” characters are way simpler to fit in.
In the end it is up to you if you want to be creative at the possible cost of being inferior to optimized builds.