Hi, my name is nawhite and I time the market.
I do it by paying off my ridiculously low interest student loans instead of investing in my taxable account (all the tax advantaged are still getting funded with DCA'ing). I just paid off a 2.1% student loan that was about to drop to 1.85% in 6 more months. The analytic part of me is kicking myself but I feel better by saying the market is overvalued. I think that makes me a market timer and I can't shake the feeling. Its taking some of the thrill off of the feeling of paying off debt.
Do you consistently pay down your student loans in lieu of investing in the market? If so, you are not a market timer (but you are having market timer thoughts by feeling grateful that you are not investing in an overvalued market.)
Or do you alternate between paying down your debt and investing in the market depending on your perception of how over/undervalued the market then is? If so, then yes, you are a market timer. But the first step to recovery is admitting that you have a problem, which you have now done. Only 11 more steps to go!
However, even if you are a market timer, you should not let it take away the thrill of paying off your debt. As MMM has said, it's a win/win choice. Even if you let your market timing propensities make the choice for you, you win either way!