I suffered with this for a while. Get this type of sock to sleep in. It cured mine.
https://www.amazon.com/ProStretch-Fa.../dp/B07H3BPPY6
When you sleep, you relax your foot and you calf shrinks stretching that plantar ligament. When you awake and start walking , it pulls it off the bone and keeps aggravating it. This sock is annoying the first couple of nights, but you get used to it. Keeps your foot flexed and allows it to heel.
Ice you arch down every night. Ibuprofen every day and this sock. Cured mine ina. Couple weeks