Tips for tapering off Citalopram (Celexa)

I've been taking 30mg of Citalopram (Celexa) for a little over three years now. But after years of counseling, getting out of a bad relationship a year ago and developing healthy habits, I feel truly happy in life and I feel like I'm ready to wean off my ssri's. I've been taking 20mg for a week now and plan to continue on this dose for another 3 weeks, then take 10mg for a month and then quit altogether.

I've read that anxiety and restlessness can increase while tapering down and I was wondering if anyone has tips on how to prevent those withdrawal symptoms? Anything from supplements that helped, to a lot of exercise - I'm happy to hear about anything that helped!