Hi Thickrod,
The techniques used for restoring foreskin by stretching are really what you need to follow (not the surgical methods). There are plenty of threads on here about various stretching techniques which are quite successful. Look for several of the posts I have done in the past, as well as those by WestLA.
I have gained enough foreskin to cover my glans when I am both flaccid and semi-erect. Since I am lacking the frenulum band (removed during circumcision) my foreskin slides back easily when I am fully erect. Although you did not mention it, I assume you are intact, and therefore you’ll still have your frenulum band. If your frenulum band has become stretched and allows the foreskin to slide back easily, it can be corrected by a plastic surgeon (involves a tiny v-shaped incision to tighten the band).
Many of the taping methods for stretching foreskin work quite well, and cost practically nothing (tape and an elastic band with clips at either end, but they are tedious to put on and take off. There are easier methods.
One of my threads mentions a device you can purchase which works pretty well in stretching the foreskin. I just looked for the thread and cannot find it. If WestLA adds to this thread, I’m sure he can name the product. It has a “Q” in the name, I believe.
There are also small weighted devises which attach to the foreskin and can be worn all day, but they are fairly expensive as I recall (PUD is one such device).
Please feel free to PM me if you need additional information.
Best regards,
-damfino