Hi as a new beginner of bitcoins. I need some professional help and guidance. I have several questions and I hope that by starting this topic other newbies like me can also receive help.
4. What is the most efficient way to mine for bitcoin?
The most efficient way to mine bitcoins is not to mine them yourself. I'd consider mining bitcoins a pure crypto enthusiast hobby, or very professional big scale operation. If you really want bitcoins, you can use services that offer good and expensive equipment and will take care of it for you. However, there are other coins which are way more profitable to mine nowadays and you can easily do it yourself. So I'd suggest broadening your knowledge and research more about altcoin mining.