I love astrophysics and wish to pursue a PhD in a good institute outside my home country India. I did a master in physics (2014) and got a summer project in astrophysics. After my master, I took up teaching. I regularly applied to PhD vacancies but haven’t got any positive reply yet. This may be due to low grades in few subjects (I got an E in quantum physics). I am aware that work experience speaks volumes; so I mailed many professors for non-stipendiary internships but it didn’t work.
I want to know if anything is there that I could do all by myself and which can be counted as a “relevant professional experience”. What other measures I could take up?