You can use TA. Price should respect previous support levels in a bullish trend. There can be multiple support levels. If 2 are broken in a row, then you are probably trading the wrong direction.
Here's a take on adding to a loser... https://elitetrader.com/et/threads/...t-right-here-baby.335635/page-21#post-5372796
That is one the most Dunning-Kruger-esque posts on ET! 1) Scale-in is not about "picking" tops and/or bottoms. Scale-in is a technique that is deployed when your methodologies and trade plan dictate. 2) Scaling-in to a loser is a technique to attain a "better" break-even point. Scaling-in to a winner is a technique to increase ALREADY EXISTING (unrealized) profits. NB: Losers can be longs or shorts. Winners can be longs or shorts. 3) Scale-in to a loser vs scale-in to a winner DO NOT CANCEL EACH OTHER. A failed scale-in winner will almost always exit with at least some profit. A failed scale-in loser will almost always be a bigger than initial loser. Again, methods and trade plan dictate, hence, "almost always" is my bias.
I have seen mention of Dunning-Kruger before. I am not of a mind to look it up at the moment, but how can what you say in point #3 be true? If you scale into a loser, you have decreased your avg price. If it then goes in your original direction, you are amplifying your win by getting closer to BE by your original non-avg entry. If you scale into a winner, you have increased your avg price. If it then goes opposite your original direction, you are amplifying your loss by getting farther away from BE by your original non-avg entry.
Why are you comparing apples and oranges? In theory there is no difference between theory and practice. In practice there is. ~ Yogi Berra
%% Good points. NEVER add to a loser, not to be confused with 5 minute noise. Could add to a winner, IF its part of a well tested battle plan. Sometimes something changes after you enter the trade I just remembered i kicked FAS out one time+ good thing i did/LOL. AT that time it was not funny, but kicking something out[exit] was the best.