The long-course application is quite a bit different to the application process for a ten-day course. As part of the application you will need to be interviewed by an assistant teacher, preferably one that knows you, who will vet your suitability and recommend you for the course.
Before you submit your application, you may wish to either meet with or communicate with an assistant teacher who knows you well. If there is no assistant teacher who knows you well, try and get into contact with the assistant teachers who served on the last ten-day course you either sat or served. The concerns you have are a matter between you and your assistant teachers.
Keep in mind also that a 20-day course experience is very different to a ten-day course. Six days of uninterrupted anapana (samatha) provides one with an incredible depth of practice that conditions one's experience when one begins and continues with vipassana.
And for what its worth, before my 20-day course I was, like you, a little anxious.
Whatever happens, I wish you the very best.
“No lists of things to be done. The day providential to itself. The hour. There is no later. This is later. All things of grace and beauty such that one holds them to one's heart have a common provenance in pain. Their birth in grief and ashes.”
- Cormac McCarthy, The Road
Learn this from the waters:
in mountain clefts and chasms,
loud gush the streamlets,
but great rivers flow silently.
- Sutta Nipata 3.725
(Buddhist aid in Myanmar) • •
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