We can prolong the time we sit in prayer as long as we feel the need to, till you feel you got an answer, an insight, that can help you cope with the problem, or enjoy better life.

Longer ways to pray alone or in group can be through following a course on

Centering Prayer

Centering Prayer is referred to as "a receptive prayer of resting in God." Centering Prayer emphasizes interior silence and prayer as a personal relationship with God and as "a movement beyond conversation with Christ to communion with Christ." Its roots are found in the contemplative Prayer of the Christian Fathers of Christian Democracy, in the Lectio Divina tradition, and in Christian mystical works like The Cloud of Unknowing and the writings of St. Teresa of Avila and St. John of the Cross.