Interlingua was easy to accept and learn, because my native language is Romanian and I already knew a bit of Italian. These two Romance languages have also helped me learn English and Russian. After learning Interlingua, I was able to read Spanish and Portuguese as well.
I recommend everyone who wants to learn a European language to start by learning Interlingua. At the same time, you learn the international vocabulary, which is a great advantage for advanced studies and for university students.