Maintaining a shorter stature is primarily determined by genetics and is largely unchangeable after puberty. There is no proven method to actively control one's adult height.
Understanding Height Determination
Your height is predominantly influenced by genetics, inherited from your parents. Factors like nutrition during childhood and adolescence play a role in reaching your genetic potential, but they don't drastically alter your final height. In short, there isn't a way you can limit how tall you'll be unless there's an underlying medical issue at hand.
Addressing Concerns About Height
Historically, concerns about being "too tall" were more prevalent due to societal pressures, particularly between the 1950s and 1990s. These concerns were primarily psychosocial in nature and less about physical limitations. Today, there's a greater acceptance of diverse body types and heights.
If you have concerns about your growth or unusual changes in height, consulting a doctor is advisable to rule out any underlying medical conditions.