Your Educator is your first point of reference and contact, in case you are unsure on any part of your Education, including your participation in the Master Class.
So please, in a first step, if you are unsure whether you are ready for the Master Class, please get in touch with your Educator and discuss your available options with them.
Depending on your individual circumstances and stage of progress, you might want to use the remaining time until the Master Class to do the needed catching-up possibly with the insight and professional help of your Educator.
If you find that you lack the time and personal resources to catch up within that given time, please consider cancelling your attendance at the Master Class. There is sure to be a next Master Class, which you are more than welcome to attend instead, and which will leave you perhaps enough time to work on your practice so that you are feeling ready and well prepared.
Please do not attend a Master Class, if you do not feel ready and well prepared, as this is the event that will authorize you to officially teach in the lineage of Tulku Lobsang Rinpoche.