Hello, I'm a nextjs(react) fullstack developer, currently working in a company as a single developer on this position.

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In the near future I want to transfer to a big company / team to work on big projects and as we all know most of the worlds big softwares aren't made with js, so i want to learn a mew programming language and follow a new path.

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I'm trying to make a choice between: Java, Python or going into mobile development with React Native.

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I was also thinking about RUST, but the market doesn't seem that big for it.

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I'm not that good with math and I also know that python is often used in companies for data analysis.

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I would appreciate any advice from you guys on helping me choose my next path.

Thank you!