The question is, where are you from? Not asking you to answer for privacy reason, but think this by yourself. Even USA is at the top doesn't mean you can just go there and earn a lot. And there are other counties that also have cheap electricity. But in the long run, you can't just get in the country and stay there forever to mine BTC. You need green card for to stay. And if we skip talking about that, then you need to focus on the mining rig. With a good rig, you can mine and compete with others easily.