There isn’t much to learn about trading; learning techniques is nonsense.

The core idea is to hold on longer when you’re right, and run immediately when you’re wrong; never hold onto a losing position or increase your stake. As long as you can make more when you win than you lose when you stop out, the overall expectation is positive, and the overall result is profitable.

While this is the principle, you’ll find it very difficult in practice. Most people quickly run away with their profits, securing their gains, while they stubbornly hold on when they’re losing, hoping to recover. When they do recover, they immediately run away.