My First Try To Join Pak Army

I passed 10th class exam in 2016.Than my age is 20 year.My family say to me to go pak army.I go for joing pak army to army center D I Khan.I enter the gate.A army man give me a entry pass.First a army officer checked my hight.He say,s your hight is low.He say to me to go home back.I very furious.I like ary jobe very much.