After thinking about this initial question and post, I see something else that I think will balance my earlier idea of taking positive action. To be honest, after being in recovery from a toxic family of origin with no contact for years, I have to admit that under certain circumstances, the best thing to do when one has lost something is to actively grieve it before one can be expected to "move onto" more proactive methods. It really depends on where a person is at in the process of acceptance of what's been done and what has been taken away. This must be acknowledged before it is clear what is gained and what new growth and new life is still waiting to be lived.
For those who just feel that they are stuck, perhaps it is because there is some self-validation that is still needed. I know that has happened to me with anger and sadness and horror feelings that I had previously "pushed away" and didn't let myself process.
This article I will link here is about the fact that our culture has shamed us for feeling a healthy form of self-pity, which is actually self-validation and a form of acceptance. I think anyone who is being told by their therapist that they are "stuck" needs to read something like this. Basically, stuck means you have not given yourself permission to feel something 100% and are not processing it to the point of catharsis or release.
That said, even when something is processed or you go so deep into it that you pop out the other side, keep in mind that you'll never be "cured" of your past or its scars. But it will never haunt you or be out of your range of management as much as when you are stuck blocking it and locked in a permanent arm-wrestling match with yourself over whether or not to allow a feeling that is, well, just there and pretty darn negative and energy-draining.
I hope that anyone who is emotionally blocked will find a way to accept and validate as "good" or "normal" or whatever word you alight on to finally approve of yourself and your emotion as if it were a friend's. If you are stuck, see yourself as if you were a good friend: how would you feel for him or her? Now turn that compassion onto yourself and feel the sadness for yourself and the pity for yourself as if you were that friend. Now you can practice loving your "friend-self" who you create as a container to fill with love and self-compassion. When full, you will have more love to give others and be stronger, in time.
http://www.pete-walker.com/recoverySelfpity.htm
For those grieving while everyone else is celebrating, you're not wrong to do so if it's needed at this time. Embrace yourself and find that love is within always, no matter who else is around or not. I bless your recovery and thank you for sharing this question for us to discuss.
Muse