Choosing a time frame that suits your trading style is very important. For a trader, there’s a huge difference between trading on a 15-min chart and a weekly chart. If you are leaning more towards becoming a scalper, a trader that aims to benefit from smaller market moves, then you should focus on the lower time frames e.g. from 1-min to 15-min charts.
On the other hand, swing traders are likely to use a 4-hour chart, as well as a daily chart, to generate profitable trading opportunities. Hence, before you choose your preferred trading strategy, make sure you answer the question: how long do I want to stay in a trade?
Varying time periods (long, medium, and short-term) correspond to different trading strategies.