If you work a traditional job that offers a 401k plan, contribute the maximum amount of $19,500. You can never be over-prepared for retirement and by making maximum contributions during your younger years will secure your financial security from the unknowns. A big unknown is if social security benefits will be in existence 30 years from now. A lot of folks approaching retirement plan their social security benefits into their income projections. With people living longer and the social security administration running large deficits, we are only an administration away from losing a retirement staple.