You've got the idea right. The issue is keeping the controlling hand near the spindle long enough for the twist to begin and then drawing out the fiber and letting the twist run up. If you draw out too soon and don't control the tension near the spindle, the fiber will twist very little near the spindle (possibly even drifting apart) and very tightly near the end (causing overspin). It's a real balancing act. You're on the right track
. Keep it up.