I took Lyrica and Gabapentin together for many many years. The only way I believe is to taper slowly and listen to your body. For me dropping the dose by 25mg of Lyrica every 2 weeks was as much as I could handle. Without realising these drugs had a withdrawal syndrome, I cut out the 1200mg Gabapentin suddenly. I was a mess for 4-6 months before I worked out what was going on. Slow and steady will win the race. If you go too fast you may fall in a heap and miss out on some important milestones at college.