This site is a very good addition to the list mentioned by the OP I regularly visit this site and put my technical analysis into action this site gave signals of cryptos pairs based on Japanese candlestick pattern eg Engulfing bar, Pin bar, Haramis etc however it is the trader discretion to use them for trading or combine them with some indicator all these tools will absolutely aid a trader to make a devise a working strategy and make profits consistently.
All of the trading tools mentioned above are good, but it seems that this will not work properly if applied to crypto with low volume.Having self-discipline and good knowledge in trading is also very important to come up with a successful trading. If you have the knowledge in trading which you gained from all of your trading experiences, even without those tools being mentioned, you will still be profitable from your wise decisions you have made.
You mean by relying on luck like gambling? 
maybe for trade several times can get a profit but it is very risky if done continuously.