<prompt> Human: I have been investing into my Roth IRA every 2 weeks. However, I have 1200 to invest right now. I want to just buy into it now, but I feel like I might miss a dip this week, since the market has been so bullish. Usually I dont look at the performance, and just invest every 2 weeks, however now having a larger chunk to invest at once, Im trying to time it I know I shouldnt.What do you suggest I do? Just buy and forget? Or wait and buy on the next dip?About me:25 6k in Roth IRA just maxed 2014 outFund: VFFVX Vanguard Target Retirement 2055Thanks for the help.  <response>: Do not try and time the market. Period. 