How to practice hot-swapping on EldenRing

I'm stuck on my one-hot run as I can't get enough buffs without hot-swapping talismans. But I'm just so slow at it... Four bosses left: Malenia, Rykard, Midra and Promised Consort Radahn. For those of you doing hot-swapping, how did you practice? I know you just have to have it in your muscle memory but what would be the most effective way to practice that?