I invested personally 80K in real physical Gold. Every morning I feel it, watch it! It's like a Blond Girl with big tits and a hot a*s... it's even betterki#¤%
If 1000 EUR is all you have I would suggest to invest in education so that you can get a better job which will allow you to invest at least 1000 EUR each month.
So the answer depends on the person asking and the position they are in.
I am sure you could double your money if you invest 1000 EUR each month over the next 12 months in Bitcoin. With 24k EUR I would most likely start some kind of business.
If I had only 1000 euros would invest in myself, education, find a good course, learn some new skill, get a job, start saving and then think on financial investments