It sounds like you are coming around to seeing that it's not the wisest thing to do right now, however I would really like to emphasize what an EF is for. It sounds like you think it's only if you lose your job. Being young, the world is in front of you full of possibility so it's hard to imagine the things that can happen. However, young people also get sick or have accidents and can't work for a period.
Also, you said that you would like to buy a house. We are approaching a time in history that will be a fantastic opportunity to buy a home. Be ready for it with downpayment, assets and reserves and your living expenses to increase.
Lastly, I'm confused about the $7,500 tax credit/interest free loan. Did you buy a house or are you getting it because of the house your parents bought?