English pronunciation can lead us a merry dance and the schwa sound (or non-sound) is something that can be perplexing for students in whose language it does not exist. It should not, however, be feared and I have never met anyone incapable of producing it.
Check out the link to Russian Red’s version of the Cyndi Lauper classic Girls just wanna have fun. When I first heard her sing Cigarettes I thought she was Scottish or Irish because of the Celtic lilt to her voice, but with a name like Lourdes Hernández that’s unlikely, isn’t it?!