1. Do proper sadhana. Bhajana must be strong. Pray feelingly to the Lord. Because of previous sinful activities, one may not be able to surrender completely. But if one prays sincerely, then Krishna will forgive him.
2. Never think negative. Always think positive. Always fill your mind with the thoughts of preaching Krishna consciousness. Always pray heart fully & sincerely to previousacharyas and the lord to give you ability to serve them. Cry before the lord secretly in the morning.