Masturbation with retracted foreskin
I have been able to retract my foreskin, when erect, for nearly 6 months now. I had initially tried the stretching exercises mentioned, but stopped once I realized that I could retract my foreskin when erect without much of a fuss.
But this is where the issue is- I haven't been able to masturbate with my foreskin retracted. I don't use much lube, but I doubt that'll help much because my foreskin rolls up behind my shaft and coils up, and doesn't really look like it'll move at all. Whenever I've tried masturbating, I've also noticed my glans enlarge slightly (it's bigger than it is when I have an erection but don't masturbate), and fearing that my foreskin could get stuck behind the glans, I abort and pull my foreskin forward.
Otherwise, retraction while erect is painless, and I'm able to pull the foreskin back fairly quickly. I can keep the foreskin back as long as my erection lasts. So, is the above situation something to worry about (while having sex), or is it normal, and am I just panicking? Should I continue the stretching exercises?