What can I do

I just want to live freely without any worry. However, it is really hard (difficult? You use hard in the next sentence and difficult would be more appropirate here). If I do not study hard, I could not work for a big company which can pay me a lot of money . Consequently, I would be obssessed with money (Why? Statement not a sentence). Although not working for a (suggestion?) big company doesn't mean that I couldn't get lots of money, I would feel comfortable with my life at least if I'm a part of the company.

My mother always say that you should study enthusiastically and get a job in a big company. I understand her thinking. But it sounds really bad (Not a sentence). I know that money is really important in life. I can eat food, wear clothes and enjoy my hobbies such as baking (ingredients are somewhat expensive) thanks to money that my father has earned. Additionally, I love buying things.

I want to get more money (Sentence?). I am sometimes envious of my friends who go study abroad and learn languages in the field (Better description needed? Bad metaphor). I think that I make less of an effort than them but I don't know whether I'm jealous of their money or enthusiasm, I guess both maybe. I feel that my language skills don't get better even when I do my best. But my friends keep on improving, even now. So I don't know what to do I am not confident of my ability.

I understood what you meant although some sentences were extremely short and more like statements which offered nothing to the text and it could be constructed a little better to say what you wanted to in less words. After you write your next piece thinking about how you could make it around 30% shorter which should make more direct and to the point.

What can I do

I just want to live freely without any worry worries. However, it is really hard. If I do not study hard, I could not work for a big company, which can give me money a lot a lot of money. Consequently, I would be obssessed with money. Although not getting being in a big company doesn't mean that I couldn't will not get lots of money., I would will feel at least comfortable with my life at least if I'm a part of the company. My mother always say that "you should study enthusiastically and get a job in a big company." I understand her thought. But.. it sounds.. really bad. I know that money is really important in life. I can eat foods, wear clothes and enjoy my hobbies such as baking (ingredients are somewhat expensive) thanks to money that my father has earned. Additionally, I love buying something. I want to get much more money. I sometimes envy my friends who go study abroad and learn languages in the field. I think that I do less effort than them but.. I can't know whether I'm jealous of their money,or enthusiasm I'm just enthusiastic. I guess both, maybe. I feel that, my language skills don't will not get better even if I'll do my best. But my friends keep on winning even now. So.. I don't know what to do.. I am not be able to be certain about my ability. Suggestion: I am not even sure about my ability.