Here is a guided visualization exercise to help let go of the past:

Find a comfortable, quiet place where you can sit or lie down without distractions. Take a few deep breaths to relax your body and clear your mind.

Imagine yourself standing on the shores of a beautiful lake or ocean. The water is calm and serene, gently lapping at the shore. Breathe in the fresh, clean air and feel the warmth of the sun on your skin.

In your mind's eye, visualize all the burdens, regrets, and negative emotions from your past as physical objects - perhaps old boxes, bags, or weights that you have been carrying. One by one, imagine yourself picking these up and walking towards the water's edge. As you approach the water, feel the weight and heaviness of these objects begin to dissipate.

When you reach the water's edge, take each item and gently place it into the water. Watch as the water slowly absorbs and dissolves these burdens, releasing them from your life. Feel the lightness and freedom that comes as you let go of the past.

Take a few more deep breaths and feel the sense of peace and renewal wash over you. You are free from the weight of the past. You can move forward with a clean slate, ready to embrace the present and all the possibilities of the future.

When you are ready, slowly open your eyes and return your awareness to the here and now, carrying this feeling of liberation and rebirth with you.

Take your time with this exercise and repeat it whenever you need to release the grip of the past. The more vividly you can visualize the process, the more effective it will be.