For profitable mining, in fact, a lot of things are needed. The first step is to purchase competitive equipment. In mining on a conventional processor, you will not go far. The main cost is electricity. It is advisable to find a profitable electricity option. High speed internet is required. Also software is possible. This is all necessary if you plan to mine on your own. In addition to home mining, there are crypto hosting services https://minery.io/. If we compare the costs in the first option, then I would choose hosting services. By choosing a reliable platform, you will not worry about issues such as equipment, room, cooling, fire safety, etc.