With the gap up today, we saw potential promise of a bounce to retest higher resistance. SPY needs to hold 413 and QQQ needs to hold 348 tomorrow for more upside. One look at the two charts and one would be able to see that SPY shows much more promise than QQQ. That being said, I really prefer to see confluence between all the indices to establish a direction bias. In this case, SPY and QQQ are both above resistance while IWM is below (163.28). 
Since I've been focusing on QQQ most, I'll be using those levels to identify my game plan. It's also important to note that FOMC is on Wednesday at 2pm EST, with Powell speaking at 2:30. Favoring the bear side, I'd actually prefer to see stocks rise into the decision to create downside potential. If the market stays down where we are, it's definitely possible that the decision causes a rally to unfold.
It doesn't matter much to me which direction we go on Wednesday. The downtrend remains intact as long as SPY remains under 440. As long as it is, I will continue adding SQQQ and other short etfs to play the directional trend. That being said, there's always money to be made on both sides, so if I see a bullish set up, I have no problem scalping that direction against my own portfolio. That's actually a strategy I use quite often and it has done me well. I use leveraged etfs to play the trend, and scalp actual shares of SPY or QQQ on an intraday basis. There are plenty of ways to achieve the same result.
Plan for tomorrow: Like I said, we're switching out SPY for QQQ. Levels have been obeyed more consistently with the Qs. Either that, or I've just had an easier time identifying them. There's also another way to draw the lower trend line which seems to coincide with rejection a little more than the original. I'll keep both, but am watching the higher one (in yellow) as another entry into SQQQ. If we open above 348.39, I'm bullish to 349.20 (close from today), then 350.54, followed by 352 (higher downward trend line). If we open below 348.39, support is 436.51, followed by 343.66. If we lose that level, downside to the 200dma or 339 is likely to materialize. 