I understand your situation but there is no such provision of doing an isolated Sadhana here. Sadhana here is primarily through work. Of course one can always book a guest house and stay for a week or two and stay in quietude, read books and visit the Samadhi everyday.
For a longer stay to escape from your problems you should go to the mountains or try to contact the Sri Aurobindo Ashram, Delhi branch.
It is however better to face life with your inner strength and inwardly remember and offer everything to the Mother and pray that She pulls you out of your difficulties.
Affectionately,
Alok Da
