Stock picking is not one of the decisions I was referring to. Getting an education in a field that will produce a substantial income, working in a high-demand field, starting a business and making it successful, living below your means and saving money and investing (you can just use S&P500 index funds).
You may not move your 401K account unless you leave the employer. At that time you can roll the 401K balance tax-free into an IRA account. There are sometimes problems with certain mutual funds that aren't transferable, so you may have to liquidate those funds in order to do the rollover.