No not difficult, it just takes time. I'm 30 now, started restoring aged 25, of those 5 years I've restored for about 3.5 of them, however the first 18months or so yielded very little in the way of results, I think because I over did the tension.
I've never liked being cut, don't like the look, and most importantly don't like the fact that more than 10 square inches of incredibly sensitive specialised skin was stripped and cut from my penis without my consent.
So yeah Age 25 or so I was noticing more and more that it was really difficult to get off, I HAD to use porn no matter what and would often just give up due to not being able to feel anything. I'd learned about restoring aged 15 or so, but had convinced myself it was not worth it. Stupid mistake. Had I started back then I'd be done by now
So I started restoring. Within a month of having my head/glans covered 24/7 the increase in sensitivity was amazing. I recall jacking off three times in one day that first month, and not being sore after! I never used to be able to jack off more than once a day before then.
I'm now roughly half way done. When sitting down and flaccid, I'm covered, always. As soon as I stand I either lose coverage totally, or its just peeking over the head.
Sensitivity has gone through the roof. I can no longer go uncovered day to day as the feel of my underwear against my glans and inner skin/frenulum is torture! Orgasms are much improved, in duration, sensation and amount of cum. I precum more than I ever have too. When you're cut, your glans, which is a mucous membrane like your cheeks, tonque, eyelids etc grows extra layers of keratin which acts to reduce sensitivity further. This will slough off as you restore.
I'm currently using an inflation method, and the growth I'm seeing from it is nothing short of amazing compared to traditional methods. I estimate I'll have flaccid coverage sitting AND stood by the end of the year.
I estimate that had I started out with inflation, I'd have probably been done within 3 years(i.e. two years ago!)
Now, surgical methods. Avoid. Don't consider them.
At present they do not offer the kind of results that a non surgical restoration can, i.e. restored sensitivity and a near perfect aesthetic. To create new foreskin, it has to be removed from somewhere else on your body, usually your scrotum, and then grafted onto your shaft skin. This will usually result in the grafted skin being numb, as well as a markedly different colour.
On the restoring site I moderate we have a long term member who underwent a surgical restoration using the method above. His hood is a totally different colour to his shaft skin and it is totally numb. He advises anyone asking about surgical methods to avoid them and wishes he had restored solely using non surgical tension methods.
OK - I've rambled on for long enough
I'd point you in the direction of the restoring site, but you are only 17 and you have to be 18 to join. Don't worry though, I'm happy to offer any advice you may need in the meantime.
Please feel free to ask me any questions, but before I sign off I just wanna say; ITS WORTH IT!