Now that I have established my emotional anchor through the guided imagery exercise on PP2 Guided Imagery Tape, do I have to keep practising that same exercise or is the emotional anchor now established?

Now that I have established my emotional anchor through the guided imagery exercise on PP2 Guided Imagery Tape, do I have to keep practising that same exercise or is the emotional anchor now established

It's established, and it always needs "topping up".  This can be done by going to past good events, or  as soon as really good events happen, then do it straight away.