Although many people do not realise it, one of the main benefits of becoming well-practised in a marital art, such as Jujitsu, is the self-confidence which accompanies it. You will become aware of this growing confidence if you consider your changing attitude towards confrontational situations.
Prior to participating in any Jujitsu training, it is likely that a hostile situation would make you feel intimidated and scared. However, as you improve your combat skills, you will soon come to realise that you have the capability of defending yourself in such situations, and you will consequently become substantially more self-confident.