Does he still nurse during the day? That tends to be the easiest to stop first because you use distraction. I weaned my oldest from night time nursing first. I just laid down with him to go to bed, but I didn't let him nurse. After about 30 minutes of fussing he gave up and just let me hold him. It only took 3 nights to wean him and each night got easier. I nursed him for nap time for a few days, but that was easy to cut out after doing the night time weaning.
My youngest was harder to wean because he was older and more attached to nursing before I weaned him. In fact, my oldest had given up daytime nursing by himself, while I had to work with my younger one to get him to wean. It took longer with my youngest and there were more tears, but he was about 18 or 20 months and I was just ready to stop.
If you don't really, really want to stop then don't. I had just been pregnant and/or nursing for about 4 years and that was long enough for me. Good luck.