Please Help!!

My washer started leaking from the bottom behind the washer the other night. It appears to be leaking a lot as soon as I turn it on. After pulling it away from the wall and checking it out with the top open it also seems like the water is bouncing off the rim of the tub and spraying out of a few little holes in the back as well, this isn't where most of the water is coming from though and may have been happening for a while. The leak at the bottom is what worries me because it is so much. I looked and it's not the hoses connected to the back it's like a puddle that's flowing out from the bottom.

My aunt said that she had the same problem and that it was a clogged filter which a friend of hers fixed quickly and cheaply but she couldn't tell me more then that.

Our washer has also been extremely loud and shakes horribly during the spin cycle since we bought it used. It still worked and was mainly just an annoyance so we've dealt with it. However, if we're going to have to open it up and check it out I'm wondering if we can fix it too. Also, the load of clothes right before this problem started shaking so hard that it kept stopping the washer so a part of me wonders if something shook loose inside.

Any help would be greatly appreciated because I have no idea what's going on and my family lives 4 hours away so I've got to fix it on my own and I've never had to do work on a washer before.

If it's going to be expensive to fix then I may just end up getting a new one but if it's doable I'd prefer to keep this one running for a while longer.

Thank you so much for your help!!