A signal is not a strategy. They vary but often take the form of simply a target entry price plus target TP and stop-loss prices. Often the target entry price is behind price and price never goes back there. So in theory its a good signal but in practice useless. And if price does pull back towards the target but stops short or over-shoots, what do you do then?
If you just want an entry signal, it does not take more than a day to learn how a simple objective signal is generated. If it takes longer than this to understand its too complicated to use anyway.
But even generating your own simple entry signals, like buy 3 pips above the high of a pin bar in a downtrend will not on its own make you consistently profitable.