damnnn two years. that things gotta be filthy as hell.
i would suggest scraping it out, fuck it gets you high so its better than nothing next time your dry. woo hoo that rhymed. i usually regret smoking resin, but than i usually regret throwing it out.
i got a full bowls worth of resin after not cleaning my piece for like 4 months, sooo you should have resin galore, whether thats good or bad i dont know