Student internship visa without school

[Stella]

Is this a way in which you think you can extend your existing student visa which expires in June ???

Return home reapply for long stay visa

My long stay visa expires June 7th. Unfortunately, I do not think I will be able to extend my visa in time. I am returning home to the US in May and I intend to apply for a new long stay visa. Can I apply for one in May if my current visa expires in June? The new visa would start around August so I don’t see why there would be a problem. I am just worried about being denied. I am also not sure if I do the process all over again or if I apply for a return visa. Thank you for any advice!