The biggest and most obvious problem in modern human psychology is the near total lack of steady, long-term, positive motivation. En masse, modern Western Man has no idea what his life is for, what he is trying to do overall, and lacks any strong reason to do anything in particular. Secularism has made everything a matter of unaligned, subjective, personal convictions or uncertainties.
The characteristic modern demand is that "Something Should Be Done!" Ask why that particular something is a good idea, or ought to be done, and there are plenty of superficially-plausible answers- indeed there are literally millions of such answers for millions of mutually-antagonistic things all of which "should" be done.
But ask who exactly is going to do them, who is motivated to do them - despite that whoever does it will immediately suffer personal disadvantages, and you get a blank.
Hence the pattern of bureaucratic democracy. The requirement that 'THEY should do something about it", combined with complete uncertainty about who THEY are and why we should suppose that THEY would be motivated really to solve problems; rather than, for instance, merely taking the money then utterly failing to solve - or worsening - the problems; which officials term 'addressing the issues'.
Until people, in their own lives, actually have and will live by steady, long-term and positive motivations; then nothing significantly constructive will be done - nothing at all. And unless these personal motivations are aligned, then these motivations will merely sabotage one another- unless these motivations have a common basis, and therefore an intrinsic alignment.
I think it is impossible, even in theory, for a motivational system to be applied top-down to this mutually-destructive chaos of complex, conflicting and ever-changing demands. People who lack common motivation cannot be controlled except negatively - they can be dispersed, or briefly stampeded - but they cannot be made to work together in long-term projects that must overcome short term hardships.
It therefore seems that the first requirement is for individuals to find genuine, visceral, effective motivation; and then - by reflection on what actually works in their own lives, felt-motivation - to discover ways of scaling-up enough of this subjective motivation to a societal level such that there is overall coherence between enough individuals.
Perhaps this is the primary task for Modern Man - to acknowledge and reflect upon his own personal deficiency of motivation; to stop supposing that the major problems can, will and should be solved by THEM; to refuse to accept their own state of alienation and negativity and to seek-out and find that which genuinely motivates in the way that makes a positive society at least possible.
To find motivation Modern Man, as a first step, needs to give-up those secular, nihilistic, god-denying assumptions which guarantee (100 percent, lifetime, copper bottomed) that he personally will be demotivated: that whatever he wants or hopes or needs to do, will be undercut and destroyed by his own lack of motivation.
After this, answers will not be so hard to find.