Hello there. I write web copy for a living. Ping me a PM if you give up on doing it yourself.
In the meantime... - You mean home study right? - just because the copy is dense on competitors website, that does not mean you should do the same. In fact, going over their copy and deciding all the reasons your customers would struggle with it, may be a good place to start. - If you are writing all the copy for your course material, then the copy for the website should sound the same so they know what they are going to get. - If you are targeting non-native English speakers, (is it a study English at home course?) - make sure your graphics do a lot of the communication for you. You will need text for your website to be search engine friendly, but if it is's a straight choice between spending resources on graphics or copy, go with graphics (and I say that as someone who has written a lot of copy for an ESOL home study website).