how to make maximum character on writable text character?

im developing my game since it's new i need a suggestion so i making a suggestion for my game and i dont know how to make a max character so they won't spam it like so many bruh letters like aaaaaaa

you could use if #Textbox.Text == 50 then Textbox.Text = "Wrote more characters than the limit" end

if you use # then it will count the string/ numebr or something im kinda new to # myself but i udnerstand most if it