How to activate self to perform righteously; & achieve & realise goals;instead of fruits of righteous actions?

Your actions are never the sole criteria for the results you are bounced back. Your being a good driver does not always ensure that you will not be hit by an accident. Other's actions too affect you. Hence, right or wrong results never prove your righteousness or otherwise. They only increase probability. That is why it is said that do your duty, and forget about the results because they are not under your control. Yes, by doing right things you increase the probability of rightness for you. Hence, if you keep on increasing your rightness your account of rightness towards yourself will keep on intensified. The ultimate saturation or concentration will put you in the state of salvation/Moksha. If you believe this by heart and practice accordingly, it will activate your self to perform righteously.