Hi Dear,

Gangster is no career and you cannot consider it as a career option. Gangster is someone who is involved in violent activities and is a criminal. If you have thoughts of becoming a gangster then I'll recommend you to talk to your parents or teachers about it. Also, try to involve yourself into non violent activities and focus on things which makes your life good in the long run. Doctor is a good career option. However, if you don not want to be a doctor, then talk to your parents about it and look for some other career option suitable for you.

Good Luck