How do I move on after my loved one's death? To what extent am I expected to move on? What is a healthy way of remembering my deceased loved one without “dying” myself? How do I cope with the pain of their absence and this distance between us?

Instead of moving on from your loved ones, move forward with them. Keep them alive in this world by thinking of them, talking about them, and doing good deeds on their behalf.

After Khadija (ra) passed away, the Prophet ﷺ was not crippled by his memory of her. He was motivated by it. He kept her in his heart through his trials and triumphs, and used the expanse (of love and compassion) that he had from his time with her to help others.

Remember death often, and think of the legacy that your loved one leaves behind and what an extension of that could look like through you.