Some technical indicators(BB, RSI, KDJ, PSY)They all seem to have a common formula. I'll use the easiest way to understand it. When the moving average reaches these technical indicatorsHigher parts are overbought (sell signal)undThe bottom is oversold (buy signal)。
When a technical indicator shows a buy or sell signal, we may not be very sure of its current trend (some technical indicators may be slow, such as MACD). At this point, we can observe several different technical indicators to determine the current trend. When several different technical indicators point in the same direction, we can compare and determine the current trend of stocks.
Haven't you learned any other technical indicators?
You can refer to the following link:
👉 Useful investment knowledge
https://www.moomoo.com/hans/community/feed/108159904251910?lang_code=0
Do you understand that?
Let's do an exercise, please study hard, and I'll ask questions later.
I chose the most popular stocks this time $Tesla(TSLA.US)$ 
Below are two chartsred circleWhat can you discover?
1. MACD enters a dead cross and trading volume falls
2. BB's stock price exceeds the high Bollinger line
3. KDJ over 80
4. RSI over 70
5. PSY over 80
These are all downward signals. When several technical indicators show downward signals at the same time, you can find that the stock price opens after these signals appear...

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$Tesla(TSLA.US)$ do not let other tell you when is the exact/best price to buy or sell... importantly is to do you own research and if you have faith in the stock you invested in... just buy with no regrets.. sell with no regrets and hold with no regrets.

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