I feel obliged to answer as I'm on your "following" list.
In the bigger picture... Conventional wisdom has, that if the slope of the 200 Day average is upwards, it's an up-trend. Downwards slope, it's a down-trend (bear market). It's always a good thing to "trade around the market's current bias". That is if trending up... either longer term or shorter... lean towards the longs. Vice versa in sells/shorts if market is trending down.
As the market changes trend, it's not clear at first... that is, "Did the market just change trend, or is this counter move just noise in the continuing trend"? You'll only know in hind sight.
The market generally does not experience long periods of "sideways"... but when it does the price pattern is more of a "horizontal, back-and-forth"... which you can trade via buying the bottom of the range, selling the top of the range.
(My first exposure to TA was in the price charts from ~1966-1982. That was a prolonged "sideways trend"... recalling from memory, the back-and-forth swings across the range were like 25-30%. Each swing could have been correctly traded as bull or bear market though the overall BIG trend was sideways.)
And as a final note... if you learn Price TA, identification of the "trend" won't make much difference. The trend only really matters if you plan to "hold a long time". I don't recommend that at all. Rather, suggest playing for the "swing" move over and over.