The only secret that you should know is buy the dips (Bitcoin dips not altcoins), once you see a big dip in the market be rest assured that there will be a pump.
Altcoin dips just like bitcoin but the ability of them to get back on track as bitcoin does all the time is what is not certain and its term as a big risk to avoid by all means. Historically till date, when bitcoin dips, all other coins follow suit.
Signals can be wrong so your on analysis should be more prioritised than what others says, whatever be the outcome come it's your loss so you must be smart to know whether you have to take the risk or not.
Signals are not something to be encouraged because it’ll limit your learning and thinking ability of the market. It’ll make you limited to some knowledge. And since the market is not always 100% correct and also the traders, you can be sure whether a particular signal is right or wrong. So trade at your own risk.