If your company has a 401k plan with a matching incentive, yes. You should continue to contribute to the plan. Company retirement matching incentives are “free money.” I would not contribute more than the matching dollar or percentage. For example, if you are contributing 7% of your wages and your employer matches up to 7%, you should not contribute more than 7%.
Although, making contributions in excess of employer matching is not a total waste, the money could be used in other investments. Your employers’ 401k plan may be diverse and broad enough to cover your investment needs. However, the excess cash you contribute could be used in a supplemental annuity, certificate of deposit, money market account, etc. I believe these are all good options.
In addition, individual investment accounts are great. These accounts allow you to diverse beyond your employers’ 401k plan of predetermined mutual funds, bonds, index funds etc. Furthermore, individual investment accounts place you in the driver’s seat as an investor. Meaning you buy and sell what you want, when you want.

There's no need to guess when picking profitable stocks. Take the mystery away by using a sound, successful method and repeat, repeat, repeat! Here's what I look at when choosing equities for my portfolio: