There is no definitive answer to how long a closure should last. However, there are some general guidelines that can be followed. A closure should last long enough to allow the individual to process the loss and grieve, but not so long that it becomes unhealthy. It is important to find a balance between grieving and moving on.
If a closure is cut off too soon, it can lead to unresolved issues and unfinished business. This can prevent individuals from being able to move on with their lives in a healthy way. On the other hand, if a closure lasts too long, it can become an obsession or an unhealthy way of coping. It is important to find a balance that works for each individual person.
There are many factors that will affect how long a closure lasts. These include the type of relationship, the circumstances surrounding the loss, and the individual's own healing process. It is important to be patient and give yourself time to heal. There is no set timeline for grief, so don't be afraid to take your time.