I want to choose crypto currency trading as a career but I feel like I need to know a lot about it to choose it as a career and I don't think there is anything better to do from here.
Everything you mentioned is true, but your definition is wrong and will cause loss, even if you are a professional. Crypto currency trading is not a career or a full-time job, and even if you are a professional, there is no guarantee that you will get a profit sufficient to pay your monthly living costs.
Trading is a way to increase your investment as If you have invested money and profits from the investment, you can use trading to enhance these profits. If you invest in Bitcoin with money that you do not need and you achieve $1,000 in profits from this investment, then you can use trading to enhance these profits or provide more liquidity for the investment, and then the profits from these profits are what you can spend. Or use it as an alternative to a full-time job (if it is more than your average monthly consumption)
but although not everyone makes a living from trading some trade in large amounts so that the profit in one trade can pay the monthly costs even for up to 1 year, so they don't trade completely but wait for the right time, and when they don't trade, they do something else. other.