Answer:
I can be found after you remove 6 letters from BSAINXLEATNTEARS
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. Sooner or later everybody needs my help yet many people are afraid to let me help them.
You went into the woods and got me. You sat down to seek me. You brought me home with yourself because you couldn't find me. What am I?
I am often sold by children entrepreneurs in summer time
I cannot be burned in fire or drowned in water. What am I?
The answer I give is yes, but what I mean is no. What was the question?