I can write on futurology stuffs like "Jobs and AI:A paradox","LGBT rights in the future" and so on like that.I am a medicore writer so ,so i will only take 0.001 for any words limit article.
So writing is not your strong suit. You said it, not me. So why do you even want to start writing for money?
Writing articles is not some continuous activity. You can't compare it to solving captchas for 6 hours everyday.
You can't write all day long and get paid for the time you spent on doing this. Good advice from me, prepare some articles first and use them as your portfolio.
No one will hire "mediocre writer" even when your payment for the job will be 10 times lower than others writers are asking.
Good Luck.