forcing for marraige 😡😡

I'm 18 now and my bf is 23. I've my career to build and he said me ," I'm giving you 6 years, build your career till that time and after 6 years marry me"..

He said this and gave an excuse that his mother is alone and they need help for his house 😡😡😡😡 (his dad has passed away) . I tried to make him understand that I needed to work on my own and save money.. but he just won't listen..

he is forcing me to marry him, I love him but I want to stand on my own feet first 😬