Sedulous career
planning did not lead to the paradisiacal
ease he had once craved
but turned into his litigious
growl, driving away even his closest
allies.
Litigious (adjective)
of, relating to, or characterized by litigation; tend to engage in lawsuits
Wordthink
Paradisiacal (adjective)
of, like, or befitting paradise
Dictionary.com
Sedulous (adjective)
involving or accomplished with careful perseverance; diligent in application or pursuit
Merriam-Webster