Bruno was eighteen months old when he came to me and I made every mistake. I expected him to settle in days. It took about three months before he really relaxed — the books call it a decompression period and they are not exaggerating. I also had visitors round in the first week, which was far too soon and frightened him badly. What actually helped: a boring routine, the same walk at the same time, one room that was entirely his, and doing much less than I thought I should. Adult rescues are wonderful. Just go slower than feels natural.