There have been a lot of Light Novels being put on here but trying to find them is next to impossible unless you have there exact name. Which makes finding new ones even more unlikely. So is there anyway to add a category or something for them?

... in the advance search by genre page. If you scroll down to Type there a Only show results for "Novel".

If you just select that, then search you can sort it out by year.

Is that something you were trying to do? Or am I missing something ...

Yes yes, I know I make longwinded comments, but that's just me >.<
I should proof read my comments more, but I won't...
So keep in mind I'm filled with typos

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No that works! Don't know how I missed it.