I’m sure there’s a lot of people that have more leeches than you at your level, but reducing your leeches is never a bad thing, right? 
I would suggest you to use the Leech training script and start reviewing them there on a daily basis. Don’t focus on reducing the number of “leeches’ reviews available” to zero right away. Remember, these are hard items for you. Overdoing is always bad. Instead, focus on making a habit of reviewing some items with the script everyday. In 1 month, come here again and tell us how your total number of leeches reduced