Nothing that passes through your mind, not even your mind itself, will stay as it is forever.
Things might last for the duration of your experience of this existence, or even into the next generation; but then again, they may dissolve sooner than you expect. Either way, eventual change is inevitable. There is no degree of probability or chance involved.
If you feel hopeless, remember this and you will no longer have a reason to be hopeless, because whatever is causing you to despair will also change.
Change is inevitable – Dzongsar Jamyang Khyentse Rinpoche