I noticed one thing I forgot to mention. After Siren accepts your book, they have you set up an email address and have you join blogs. This lead me to befriends some really super fellow authors. One took me under her wind and was completely awesome. If you want a good read, look up Honor James' books.
As a new writer I have found that you need your fellow writers support. They join you in celebrating and pick you up when things become overwhelming. It is just plain fun talking with them on FB.
Enough for now. Keep calm.