If you think you aren't helping as much as you wished you should try to see how you could.
Even if it would be to go to a doctor, practice ex Medicine Buddha, following your Guru advices.
If you are already doing what you can, as much as it's possible right now, don't worry so much, it's not you fault, things take time to heal and they do change, even if ...
-You overcome the fear by paying attention, continuously, on purpose, on a moment by moment basis and you see the experience of the fear not the concept of fear.
-Listen and chant up a loving kindness attitude for temporarily destroying anger or fear(aversion).
Fighting fear makes it grow. Letting go of fear, it will disappear just as it arose. Fear is temporary. Temporary things are not worth clinging to:
MN62:3.2: “Rāhula, you should truly see any kind of form at all—past, future, or present; internal or external; coarse or fine; inferior or superior; far or near: all form—with right understanding: ‘This is not ...
Before you aim to lose control of your mind I urge you to read this answer with regards to what Volition (conditioned free will) is.
Unless you are fully liberated don't be too quick to say there is no controller. You are the owner of your volition.
It is not wise to say volition, including all bad volition, is uncontrolled because it offers a free license ...
Fear is a reoccurring companion on the spiritual path. It doesn't mean that something has gone wrong. The particular fear that you describe seems fairly common, but fears can come in all sorts of shapes and sizes; all sorts of feelings and thoughts.
How can I overcome this fear?
The overcoming of fear happens when we become curious about it rather than ...
I think you can reflect on the mind's changing being inevitable as old age.
If intellect has knowledge about how mind changes then the course of development will reflect that.
Past conditioning can not be undone and bad mental & physical behaviors will come into play.
One should reflect on conditioning and let wisdom steer as much as possible.
There is ...