Oh, you're certainly not going to cause any "bad stir" with us - it is the nature of this subject that we are immensely "thick-skinned" - you
have to be to put up with the sort of
seriously disturbed people you meet, particularly those who wax eloquent on the "benefits" of circumcision performed
not because there was even the purported medical "justification" that might be suggested (wrongly) in situations such as your own, but for such cosmetic "benefits" as being able to view (or have others view?) their exposed glans any time they should happen to look at it, even though most often flaccid and wrinkled!
And the point is - we
know what our qualifications are - we're not insecure about them, but we have to wonder whether those who are only too eager to strut theirs, oftentimes have a guilty conscience that their actions might suggest that they do not quite
deserve them!
OK. Clearly at present, you have an inherent limitation on getting a "grip" on the part of your foreskin that needs stretching. Stretching over a flaccid glans really does not provide much stretching at all (but note - it is such stretching repeated over the
years during childhood, that
does contribute significantly to normal foreskin function), so on that account, things will not happen
fast. Getting a finger in will certainly be better; you want it to be a really snug (firm) fit.
By my reckoning, it is not too far from one index finger to the tips of two little fingers together. Yes, it's tricky to get them in, but once you hit that point, even just the tips, I think you've "got it licked"

because you
can then "hook" them inside the opening so that they hold themselves in place and will not slip.
Then you can perhaps increase the time to a couple of minutes - and you will be able to relax without them slipping out. So that's your first goal to work toward.
Yes, again
this is the "exercise" we suggest for stretching the frænulum. Pretty easy to do overall, and no doubt should be done in addition to the other exercise, even from the start.