Resources for improving vocabulary for transfer essays and the like?

<p>Does anyone know of any resources listing vocabulary words, from simple to complex, which would help me? Or have personal suggestions?</p>

<p>I ask because I'm having a hard time precisely expressing what I want to say/am thinking - making me kinda frustrated. </p>

<p>I'm not looking to mindlessly insert "bigger" synonyms into my essays, as I know that's frowned upon, but rather find the words that will allow me to say what I really want to say.</p>