Moving to Netherlands

So for a bit of context. I am a university student studying Computer Science and Engineering and work proffesionally as a bartender (mainly doing seasonal work, especially in the summer). My maternal tongue is Greek and know native speaker level english (with ECPE certification). Lately ,seeing how the work force is so oversaturrated in the field I'm studying and the future is dimm for computer programming, I'm considering moving out of Greece in search of work and changing field of studies for my Bachelor's degree. I've looked into many countries and right now am leaning towards the Netherlands due to to the broad use of English and even having an English speaking university.

From what I have read in many forums, posts and seen in videos I was considering Amsterdam or Rotterdam due to its influx in hospitality venues (bars, restaurants etc) and promising salaries (with a resume of almost 1.5 years as a bartender). Most of said articles and videos summed up the living cost to be about 1100-1500 euro with food included. After doing my own research on various sites I came down to the following prices:

  • Rent : 700 - 850 monthly (depending on apartment location and size)
  • Utility Bills : 150 - 300 monthly (all utilities summed up, also dependent on apartment location and size)
  • Food : 250 - 350 (I dont really eat out much and usually shop on bulk or on discount to save money)

Main questions I would kindly like to ask:

  • Are the prices above close to true as a student in Amsterdam/Rotterdam? If not what would most closely correspond to reality?
  • How expensive is transportation in Amsterdam/Rotterdam? What is the cost for public transportation? In Greece I usually go around on motorcycle and my monthly consumption is 30-40 litres of gas, would that also be a viable means of transport and what would its cost amount to?
  • What is the median salary for a barista/bartender and are there any employers to avoid?
  • For most applications that matched my resume the salary is about 2750-3500 euros per month. Would you say that it is enough to live in Amstredam or Rotterdam, with the occasional going out for a drink or attending some social events?
  • Would you say that learning Dutch is needed? If so what is the level of difficulty to learn?
  • Also kindly mention any helpful tips or tricks for people that want to move or study in the Amsterdam/Rotterdam

(Edit: forgot to mention that the above mention rent price was for rooms to rent or student accomodations)