Many people are often quite confused about what they should try to achieve in life. Now, living the last stage of life I can reflect on important objectives of life. For me there are three: i) achieving materialist security  ii) discovering and developing ones unique abilities and talents  iii) Finding the (almost illusive) emotionally compatible partner.
After we fulfilled these three demands we’ll be able to focus onto quality of life, which basically consists of eliminating or minimizing all inconveniences or suffering.
Before that it’s not possible, because it’s vital to sort out one's basic living requirements or else one is overwhelmed by too many problems. Thus, drugs aren't offering the solution.