I believe to see firsthand how the market changes every time and it can be seen every day with self-understanding in order to have results and views that we can analyze ourselves to determine an accurate information. There is some really insightful technical analysis paid groups that do their research and post what they think of trade. The technical analysis analized it well of what probably happen even it is just prediction to other but the reality strikes
Firstly, you should not always depend on groups that share analysis, even though they can be helpful, but it is always better knowing how to do your thing, so as to make quick decisions on your own. It is always a good thing to be independent as a trader.
Secondly, with respect to the main topic, the market changes without any apology and we all just have to get used to it. In some occasions, technical analysis may give you a buying or selling signal, then a lot of things could just change all of a sudden and there you are trying to pick some pieces and using your stop loss but it is a normal thing.
I believe the market in itself, is just so complex and a whole lot of traders, even with the analytical skills are just trying to still play it safe by not completely relying on TA, but coupling it up with their perception most of the time.