Some traders make scalping their main trading strategy, focusing exclusively on fast operations. Such traders use:

Advanced graph analysis tools
High-speed Internet
Real-time market data
Automated Trading Bots
This method is suitable for experienced traders, as it requires a quick reaction to market changes and high concentration.
But for beginners, there are other systems as shown below.they are more reliable and safer for beginners.

I had a indicator like this and it was a lot of headache

Dual Volume Profile