Stop trying to bear it.
Let it bear you, let it bear you to wherever it is going to take you.
You will be OK.
Sink into it.
Give yourself over to it, turning inwards with love and gentleness.
Give up expectation of how long it will last or how bad it will be.
Ask for love and support from anyone who can hold that space for you to just experience. Stay clear of anyone who will try to ‘fix’ it.
Just be there with your pain, be there for it, be there for yourself.