From your description, its sounds as if you may have some programming problems.
At your age and presumably having some training history, every bench press session need not be to failure nor does every session need to be 5x5. You would potentially benefit from a Heavy-Light-Medium type programming and that 5x5 may only be once a week. You could even back that off further to something akin to 5-3-1 where higher volume happens every 3 weeks.
How frequently are you doing 5x5 at high intensity?
When you say 5x5 "until failure on each set", what exactly do you mean? Are you doing 5x5 with the same weight across all 5 sets? If so, you're not going to failure on all 5 sets. Perhaps on the last set, but the description is unclear. If you're actually pushing to failure on the 5th rep, there's no way you are repeating that for 5 consecutive sets. 5x5 at higher intensity (~90%) is never going to be "easy, but you don't need to be grinding yourself to dust with great frequency either and, as described "to failure" seems to imply as much.
Does you program include overhead (standing barbell) press? The press is a particularly great complimentary lift for the bench press as it strengthens the shoulders in a way, particularly the rotator cuffs, that tends to keep them healthy. A number of programs utilize the press on the "light" day since, by default, the stress is much less than bench pressing due to the inherent lighter weight. Its a great way to ensure longevity in the bench pressing game. You can also maintain a bench press reasonably well by exclusively pressing for a cycle of weeks at a time. -might be something to consider. I've known people with shoulder issues who have given up bench pressing altogether in favor of the press.