Trendlines are important. Most pro traders use trendlines extensively in their trading. New traders tend to ignore trendlines considering them to be very simple. But trust us, markets respect these straight lines that we draw to connect the higher highs or the lower lows. Drawing these trendlines is an art and not a science. So forget about using a software to draw trendlines. With practice you will be able to draw trendlines correctly. You just need a little practice. Watch these video tutorials that explains how to draw trendlines and use them in your entries.
Watch these 2 videos also on how to use trendlines in your trading!
This is also a good video tutorial on how trendline trading techniques!