yeah, well, learning about technique, style, tools, strategy and mindset are a sure fire road to success. That's what I say. My favorite book is still Reminescences of a Stock Market Operator, its the best.
be very careful, most of those signal services are nothing more than CYBER CRIME! they are black hat marketing gurus, not trading gurus, who know how to press your buttons and get you to give them money. If trading was as easy for them as they want you to believe why aren't they MEGA rich, living on their own private island? Because they are full of sh#t. Trade for yourself, accept your own losses when they come, work hard to make profits and reap the benefits, else you'll just lose money, and some more money and some more money while chasing the "holy grail".
to be totally honest, not really, you just can't trust a signal to be good even if the provider is honest. Most of what you find on the net is total BS, marketing gimmicks used by shady brokers and 3rd party black hat seo's making a buck off peoples desperation, greed and laziness. Do yourself a favor and learn to trade for yourself and use weekly expiries, that way its easy to monitor and you'll have plenty of time to take signals when they develop.