If you are writing to someone else experiencing struggles, focus on validation rather than "fixing" the problem.
Where exactly does it hurt? Does the sensation move or spread?.
Framing failure and struggle not as endpoints, but as a "price for the glory of tomorrow" or a necessary part of a "testimony".
Pain should not be static; it should evolve in stages (e.g., a wound that first sears, then itches, then tickles).