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I don’t know if you’re for real or not, but asking like that (and that is your second post with a similar question today) needs to be managed with care. To be on the safe-side, avoid PMs from members at this stage if they offer to help you out on a one-to one basis, and keep things out in the open here. After all, you do wish (I figure) to buy Bitcoins and not "Bye Bitcoins".
The majority of us enter purchase our crypto on an exchange, and while at that, you need to pick one that is reputable, accessible from your country, and accepts a payment method which you can use. You also need to consider where you are going to store the purchased crypto (type of wallet, placement, cost, and so forth). @Upgrade00 has pointed you to some usefull resources you should look through to start with.