Before reading further, it's a good idea to read the following post: Best Technical Analysis Indicators.
If you are a stock player, you are confused about which indicators and other technical analysis are best for you, you often change technical systems, then in this post I can advise you on how to choose the best technical analysis indicators. My advice, if you want to determine the best technical analysis indicators, at least there must be:
One leading indicator and one lagging indicator. One leading indicator: to determine faster buy and sell signals. In general, the stochastic indicator is a leading indicator that is quite convenient to use because it consists of the intersection of two lines which makes it easier for you to determine buy and sell signals. One lagging indicator is used to determine price trends, tend to be bullish or tend to be bearish. In general, the moving average and Bollinger band indicators are quite convenient indicators to use as lagging indicators.
One thing you should never forget when you build a technical analysis system, is VOLUME. Volume is a very important indicator to determine the interest of market participants in a stock. High or low volume can be used to indicate whether the stock price will increase or decrease. If you don't understand volume and how to read it, please read How to Read Stock and Forex Volume. The combination of these two indicators plus volume, can provide direction to determine more precise and accurate signals.
I personally prefer to use a combination of leading indicators (stochastic oscillator, RSI or momentum) and lagging indicators (Moving average) and volume. Plus learn candlestick patterns. If you want to learn candlestick patterns, please read: Learn Candlestick Part II. Why do I advise you to use indicators?
The indicator is quite easy to learn, and reading signals through the indicator is also quite simple. In essence, the lagging and leading indicators are indicators that are quite easy to use, especially for beginners.
Then, you ask again: "Sir, is it possible if I predict stock prices mostly using only chart patterns (such as double tops, etc.)?"
** I will discuss the chart pattern in a separate post. The post about chart patterns hasn't been published yet.