The Disney logo for the movie looks nice, but it’s for a movie. Disney has many millions of dollars to spend on promotions and creating as many versions of this logo as are needed for the various ways in which it might be used: https://bit.ly/2IKkQCI
You say you’re not so good at design, but I’m gathering that you want to do this yourself. If that’s true, just how will you do it?
Logos are generally very simple. One of the main reasons for this is due to the diverse and unexpected ways in which they will be used.
How, for example, would you convert this kind of frosted, icy lettering to a storefront sign? It’s doable, but it might very well saddle you with significant and potentially expensive fabrication restrictions. How would you embroider it on a uniform apron or print it in straight black and white on your cash register receipts? I could give you lots of other examples, but you get my point.
If you looked at the link I pasted in above, you’ll see lots of variations of the Disney Frozen logo. These variations were likely necessary to accommodate all the various ways in which the logo ended up being used. Disney can afford a hundred variations, but as a small business owner, you likely don’t want to do that, which is where keeping the logo simple, clean and straight-forward will play to your advantage.
What I’m getting at in all of this is that it’s fairly easy to come up with cool-looking concepts (no pun intended). Frosted lettering could very well be just that. It might, however, come with unexpected costs and practical inconveniences that makes that initially great idea less appealing down the road as you run into the problems associated with it.