Do I choose a big company or a startup to start a new life in another country?

I am a single, 27M, software engineer, and I’ve been living a normal stable life in my developing country. I worked for 2 different startups since my graduation, and for the last year and a half I have been employed in one of the country’s well-established big corporates.

However, it has been always my dream to unfortunately live somewhere else, hoping to find a better quality of life and gain more freedom.

Last week I landed 2 job offers – one for a 10 year old startup in Berlin with 200 people. And another offer for a very well known company in Rotterdam with over 6000 employees.

The startup is offering me a senior title with 20K EUR more pay. Both are offering decent benefits as well as good relocation support and packages.

My mind and heart are torn apart knowing I am about to make a decision that could completely shift the course of my life. I cannot help but think it’s more logical to join the big company, but my first feeling is that I want to join the startup, I want to take the risk if it exists, I am also greedy for the money and the title, and I even feel I will enjoy life in Berlin a bit more than Rotterdam.

How would you approach this decision making process? I have not been able to sleep from all the overthinking. Please help.