Just to reiterate what someone else said - if you do look on Craigslist, PLEASE be careful as it is filled with rental scams.
If it sounds too good to be true - it is NOT true (even if they show actual photos of the unit - they hijack them from real listings!).!
Never wire anyone money - never believe anyone who says they can't show you the property because they are out of state with some story as to why.........make sure you're dealing with the legitimate landlord........and if you're offered a sublet, make sure it is allowed by the building.
As mentioned below, your best option would be to find a shared apartment - there are sites for that.
Best wishes to you..............I know rental prices in Manhattan can be shocking to someone from out of the area, or not familiar with just how high they can be!
I went through this process with my son when he got his first apartment, some years ago, in the city following college graduation. He ultimately shared an apartment wirth 2 others.... the parents had to be guarantors. He found a 2 br apartment which was turned into a 3 bedroom when the dining area was closed off by having a temporary pressurized wall installed. Often 1 bedroom apartments are turned into 2 bedroom units by having this kind of wall installed, too.
Some of the buldings restrict this now, but others don't, so it is an option you can investigate.
Look into all your options.