Why is the form so long on the site?

im trying to just put a simple form on my site, but for some reason the form is an entire page long under the subscription button and make my entire site look like crap. can we please fix this?

Height of the iframe inside of which you have added your form is 1000px. Because of that there is a white space below your form. 

You can set height of that iframe to 500px.

As alternative you can re-emebed your form with iFrame code. Inside of this guide you can find how to get iFrame code of your form:

Getting the form iFrame code

Hope this will help. Let us know if you need further assistance.