I need some advice. I found a new job, but they need Spanish. And I'm not very good at it. How do you think - is it real to pull it up yourself?

My friend teaches from books and movies. And she is good at it. Personally, I can't do that, I need educational materials. I think it's necessary to start from the beginning, so that you don't have to look at incomprehensible letters put into words and sentences. I'm taking spanish comparisons practice right now https://spanishgrammarlessons.com/worksheets/basic-spanish-communication/comparisons/

Thank you for the advice) Indeed, different people are suited to different methods of learning foreign languages.