How Long Did It Take You to Restore Your Flexibility?

i did not do any kind of dedicated, like, lumbar flexion mobility restoration or flexibility restoration. It was just this a gradual process of allowing myself to go into flexion,. slowly, overtime, flextion desensitized, and now i can go through it. Granted, i don't have the best lumbarflexion mobility, but it doesn't hurt. I have zero back pain, and i can do everything that i want to do in my life.