You'll find it won't be long and he'll be gutting those squishy toys and removing the squeakers, maybe even swallowing them.
Some of the soft toys are a bit more resistant to tearing but I always inspect them daily and repair any seams they have opened. He looks very young, how long ago was this photo taken? These puppies, as you've found out, can be pretty full on. If he is actually heeling you you may need a time out area, a pen is best, where he can calm down but still see you. I strongly suggest you join the ACD-L group, the members there are very experienced with the breed, they'd make you welcome and assure you that there are no stupid questions, they've all 'been there, done that' with cattle dogs, you could find them very helpful.
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