I'm afraid not. It's like skating on thin ice; you know it's likely to fail on you (and will fail before summer, in the case of ice) but there's no telling exactly when or where. What you want to do is first prepare to survive the crash as gracefully as possible (keep your backups up to date; collect your installation CDs, serial numbers and keys; locate and print off the manual for your model; arrange for a spare computer). Then see if you can get the computer diagnosed (and the drive replaced if necessary) as soon as you can, and meantime do what you can to make your old drive last a bit longer. Using the computer less may or may not make a difference.

There are several kinds of things that can go wrong with a drive and often you never do find out exactly what happened. Your system may be warning you that it's taking too many retries to read (or maybe write) data but that could be caused by the magnetic surfaces deteriorating, by the electronics in the drive getting flaky, and possibly by a few other things as well. It's not even 100% certain that the problem is in the drive but replacing the drive is the first (and usually the only) step in finding out.