If you have a soft drink or Kool-Aid as a snack, you should eat something from the grain or fruit food groups along with it. An occasional sweet drink containing a sugar substitute is fine. Most cookies are OK for snacks because the main ingredient is flour. Brush your teeth after eating sweets. Most adults, teenagers, and children enjoy sweets.
Most teenagers spend part of their earnings on sweets.
Don't put yourself on a guilt-trip. Eating sweets in moderation is fine. A well-balanced diet can include some daily sweets. You think you have a problem with sugar. You have other questions or concerns.