Brand new with an overdeveloped plant

[cate]

Hello,
I received my first orchid yesterday as an anniversary present! However... its a bit of a mess. I know next to nothing about orchids but have been doing a lot of reading today and have gardened frequently. To me, this plant looks overdeveloped and under cared for. I am wondering if anyone can help me id the type and tell me the best steps to take.

The first picture is of the first of the blooms.

In the second, the leaves are flimsy and many have black spots. (I have read that this is from too much heat?) A few are severely damaged, and others look dead.

In the third, there is a layer of moss growing, but I can't tell if it is the growth medium being used or not. Also, the little weeds growing can't be good.

In the fourth, it looks to me like there are 5 pseudobulbs (there are 5 stalks of buds) and another growing in. See the 5th picture. Is this too many for this small pot? Should they be separated?

Thank you for any advice!! I'm excited to start my own collection!