This is a very important question. You cannot get the full picture of your health by looking at weight or a single point on a growth chart.
Children’s bodies change as they grow, throughout childhood and you may experience “growth spurt” (periods of fast growth). What is important right now is to not just look at your weight, but look at your overall health and how you feel. Behaviors including regular meals and snacks, drinking plenty of fluids, eating a variety of vegetables and fruits and getting at least an hour of active play every day are much better markers of health than weight. A healthy diet and lifestyle affect mood, energy levels, athletic performance and school performance and reduces the risk of illness. Build everyday eating habits around foods that contribute to health so an occasional less-nutritious food can fit in without being labeled cheating.
If you are concerned about your weight or you do not feel healthy, I would suggest seeing your doctor who can give you a better picture of your overall health.