Ok so whatever my mistake. MOST terriers were from hunting purposes... either way they were bred for toughness and stamina and need to be exercised daily for at least an hour.
neuter him? fuck that, OP should have done a bit research before getting an overly hyperactive dog in the first place.
i hate owners who neuter their dogs because they can't handle them, don't get them in the first place and get a more relaxed breed instead!