Most failed germinations I have seen came down to letting the paper towel dry out or keeping it soaked and cold on a windowsill. Old seeds also benefit from a scuff with fine sandpaper or a short soak in water first, since the shell hardens over the years. Step by step notes on the towel method, temperature ranges and how long to wait before giving up are posted on https://kushindicaseeds.com with photos of each stage. Move it once the taproot shows and never let it grow into the paper.