Here are a couple of things to try:
There might be a problem with login items after you try and log into your account. To disable login item, hold down shift after clicking the login button. http://support.apple.com/kb/PH14215
If you have ssh or remote login turned on, try accessing your account over the network.
If your mac had firewire/thunderbolt, you should be able to use Target Disk mode to mount your macs HD on another mac and get files you need off that way. http://support.apple.com/kb/ht1661
Good luck.