Let me unpack this for you.
You aren't familiar with momentum and autocorrelation?
How much experience do you have on this topic? Your second statement negates the first.
Your edge can be analytical, informational, or logistical. For example, floor traders used to have a logistical advantage (they could make a trade before you could phone your broker) because they could trade ahead of flow. An edge doesn't always exist and even the ones that do can fade, but it's your signal that results in a greater than 50/50 odds of winning a trade. If you are entering trades and losing more than 50% of the time then your current system is worse than a random guess.