I presume with the end of Kethu dasa, you have completed your career life. Your next Venus period of 20 years, I think you should retire and lead a life more involved in spirituality rather than doing active jobs with lot of responsibility and strain. Your Venus has only 14% residential strength which could put you into lot of strain if you pursue an active career. That may be the reason for your inability to get a good job once over again. I would suggest you do some chotta-motta job around and spend the rest of life peacefully. 58 years is a ripe age for retirement.