@cdg93 This.
I stopped stretching for a couple years and came back to “barely reaching my knees”.
What worked for me (every single day):
Feet shoulder-width apart (or any otherwise stable degree of separation). Then bend forward and reach as far as painlessly possible. You should feel a stretch, no pain.
Then, in this position, let the head “hang”, and slowly put hands over head (trying to keep hands and arms as relaxed as possible), letting the column stretch and decompressing the neck (I usually hear a “pop” from my neck at this point as vertebrae align).
Then once more reach as far as painlessly possible, then slowly roll back up.
Everything should be painless
STOP IF YOU FEEL PAIN
Edit: at some point I was able to touch the floor, when that point came I started bringing my legs closer so now I can touch the floor with my legs together AND touch my forehead to my knees. I’m a bit overweight but I’m proud of being able to do this.