Goal : The portfolio I'd like to build in 2020

Hi, my name is Wendy!
I'm a beginner and my aspiration is to learn from all you kind people here on TradingView.
One day I hope to land a job as tecnical trader with an investment firm.
Please don't hesitate to critique, correct, and leave feedback — I'm here to learn!
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I have never traded a stock in my life.
I know nothing about how to build a portfolio.
But we have to start learning somewhere, right?

Further, I love Catherine Wood of Ark Invest.
She seems so smart and I really like her way
of describing possible futures.

So, to get started in trying to figure out what stocks
to look at and possibly add to my portfolio, I read
a bit on the ARK invest website.

I found the American Beacon fund and shamelessly
picked their top 10 stock holdings.
To bring up the total to 100% I added gold and Bitcoin.

Just to avoid any misunderstanding — I don't own these
stocks. Rather, they are stocks that I want to analyse and
hopefully invest in during 2020.
Since I'm a beginner, my main focus is learning how to pick
stocks and manage a portfolio.

What are your thoughts on how to start buidling a portfolio?
What are some simple but important things to consider?
/W