so I just made up my mind that we can't mine rather we can buy.
Mining is doable, but it's a very competitive market, making it expensive to run a profitable mining rig. Solo mining takes lots of investments, but if you have some capital and cheap electricity, you can join a mining pool.
i think for a starter it is preferable to buy a small portion of it through Binance or coinbase, and that involves creating an account, so you can purchase it after funding your account through the banking system either by your debits cards and the rest.
You can also buy through decentralized channels like bisq and hodlhodl. They are considered better options cause they do not hold your funds nor demand for your personal details.