Dear Liz: I am approaching being able to retire in three years at 56, but I’m really concerned with the current market conditions. I have around $320,000 in 401(k) and 457 accounts now, all of it invested in stocks. Should I scale this back to more moderate allocations? My pension will pay me around $5,200 a month, so I do not anticipate needing to withdraw from my investments before age 59.

Answer: Even if you’ve been a die-hard do-it-yourself investor until now, it’s time to get help. Retirement decisions can be incredibly complicated, and you may not have time to recover from mistakes.

A fee-only financial planner would ask, among other things, what your current living costs are and what additional expenses you expect, such as buying another car, taking trips and so on. Those details can help determine whether your savings are adequate. The planner also would ask you how you plan to pay for healthcare in retirement, since Medicare doesn’t kick in until age 65, and an individual policy at your age could eat into that pension check. Even with Medicare, Fidelity Investments estimates, a 65-year-old couple retiring this year would need $240,000 to cover medical expenses throughout retirement — not counting any money they might need to pay for nursing home or other custodial care.

What a planner probably wouldn’t do is approve having 100% of your investments in stock at any age, even with a nice pension. You may have time to ride out another market downturn, but watching half of your life savings disappear might increase the chances you’d sell out in a panic. Having a more moderate allocation that includes bonds and cash could help cushion those market swings and keep you invested.

You can get referrals to fee-only planners who charge by the hour at the Garrett Planning Network, http://www.garrettplanningnetwork.com. If you’re looking for fee-only planners who charge a retainer or a percentage of assets, you’ll find those at the National Assn. of Personal Financial Advisors, http://www.napfa.org. NAPFA has tools for consumers at http://www.napfa.org/consumer/Resources.asp and the Financial Planning Assn. has tips on choosing a financial planner at http://www.fpanet.org/FindaPlanner/ChoosingaPlanner/.