You are right, @op. People keep changing strategies because they are trying by all means to avoid losses, which is quite impossible. Trading requires consistency in addition to the skills and knowledge already acquired. No matter how good a strategy may be, there will still be some bad days when losses are unavoidable.
For those who are still trying to find the best strategy to minimize their risks and maximise profits, they can start with a small capital. Then, over time, when they find what works for them, they can scale up.
Changing strategy will never make you a profitable trader, it is just like one who happens to be jack of all trades and master of none. Keeping up with one strategy is the best and when you stick to it, you can make it in trading faster because you get to master the skills more and more. Learning makes perfect and when you’re perfect at it, it becomes stick to you and a knowledge you can never do without. Sticking to one strategy is what most profitable traders are onto and they’ve made it far while using that one strategy. This gives you ample time to become better and become better in your trading. One strategy is enough to be a profitable trader.