If you don't want to mine bitcoin, it can be bought using a crypto currency exchange.Most people will not be able to purchase an entire BTC because of it's price, but you can buy portions of btc on these exchanges of fiat currency like U.S dollars.For example you can purchase bitcoin on coinbase by creating an account and funding it, you can funds your account using your bank account, credits card, or debit card.
You said if you don't want to mine Bitcoin, have been seeing alot of aids online on how to mine Bitcoin and have tried alot of methods to mine but it turns out to be scam, so I just made up my mind that we can't mine rather we can buy. With the price of Bitcoin at the moment 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. And another thing to look out for is to be very careful so you wouldn't be scam.