Hi 'Kel182' - now that I have seen his photo - he looks to be a real cutie – and definitely what I would class as a ‘busy pup’ !
So, if you are not sure of the characteristics of the breeds that make up your pup – here is a link for you to start with:
Australian National Kennel Council
Border Collie information can be found in Group 5 of the breed link I put up – and Terriers make up Group 2.
If you can - get everyone involved with you in the general care of the pup – like helping you feed the pup, change his water, brush him, play with him and even just walking him around the yard on lead. This will allow the pup to bond with everyone in the family.
17 weeks old is well within the right timeframe also for your pup to be ‘teething’ (approx. 3 – 7 months) – so if he is acting like a ‘piranha’ and chewing on everything – this could be why.
Have fun - and remember he is only very young ! He will have the brain capacity of a gnat - so training sessions - short and often !