When you surrender that's where you get your strength from.
One should surrender fully to the Lord, forgetting one’s so called material happiness, opulence and education, which are not at all useful for pleasing the Lord. The Lord is pleased only by the process of surrender unto Him.
If you simply surrender, you will be decorated with all the vaishnava qualities.
The symptom of a Vaishnava is trinad api sunicena taror api sahisnuna, that's the perfect definition of a Vaishnava. Another consideration is that a Vaishnava is a surrendered soul to Krishna.
The quality of chanting dpends on purity. Purity is dependent upon surrender. Chanting and Surrender happen simultaneously.
The reversals experienced in life are actually the opportunities which could impel us to sincerely, with all humility, take shelter of the Supreme Lord.