The expectations of the outcome of meditation according to our mental calculation may not work. However no effort goes in vain. If possible one can find out a place in one’s own house and keep a positive atmosphere. Initially it helps to Practice meditation regularly and at a fixed place and time. Later it must become more and more spontaneous and independent of any outer conditions.
Optimism fades with age, and some remain unaware of others' suffering, as seen in those who never experience hardship.