At your Custom page that have a list view of a custom-list. add script editor and then add this code
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$( document ).ready(function() {
document.getElementById("idHomePageNewItem").removeAttribute("onclick");
document.getElementById("idHomePageNewItem").href="http://epm/workflow/Lists/Shoe%20Models/NewForm.aspx?Source=add your custom page url";
});
At document.getElementById("idHomePageNewItem").href=
put your link to NewForm before Source Query String
and after it add your Custom Page URL that you want to go back.