Treasure All Those Moments When You Were Careful
The Steipler Zatzal pointed out10 how the Mussar Seforim can be too negative. I would say that it’s perfectly fine to be concerned about the Tum'ah you acquired at the airport or in N.Y.C. etc., as long as you treasure all those moments when you were careful with your eyes, and you realize that by a bad habit, even a half-hearted attempt at Shmiras Einayim gives you Otzros and Otzros (fortunes and fortunes) of everlasting Kedusha and Tahara.