Buy is easy and you can complete a purchase in a few seconds. Very easy and very fast. But before and after buying, you must have reasons to buy it, reasons to hold it and why you sell it in future.
but behind Bitcoin there are two other Altcoins that are highly recommended I recommend BNB and Ethereum, and others are better to ignore
Ethereum, BNB are good and BNB can help you has higher increase in portfolio.
I recommend regarding Telegram groups and Discord avoid and be careful Be careful with Scammers who roam on such platforms, lest you become one of the victims of their scams and it is a pity if this will happen to you, these "Shillers and Scammers" are very roaming on Platforms such as Discord and Telegram.
You can join groups of projects on Telegram or Discord. You must protect yourself from scammers who usually send you a lot of PM. They impersonate moderators just want to steal your key, your coin. If they ask you key or coin, report them.