Bitcoin started the campaign through mining if you have the latest hardware with low electricity consumption and if you really want to know how to mine bitcoin then it is also a good start but setting up a mining rig is so expensive, and the return of your investment is also at risk or maybe you cannot mine enough coins to cover your investment in the rig you built. If you really want to get bitcoin fast i think it best to buy bitcoin or in other hand you can also join trading if you have the knowledge in trading cryptocurrency. Nowadays there are so many brokers that you can buy bitcoin and not only bitcoin other coins like ethereum and litecoin is already gaining popularity and value.