yeah that's pretty much what i'd heard a mate has flat feet and nhs insole things and says they make little to sod all difference.
and yeah. i was pretty gutted when i got the news. i'm never gonna be the ripped Adonis but i can get pretty in shape and cut doing the low impact stuff. but all plans of gaining muscle mass big time are fucked.
If you go private or get a decent podiatrist they make a whole world of difference mate.
You get what you pay for, first you have to get some temp ones made by hand to fit your feet, then when you've worn those for about 3-4 months and the prescription is ok you get a plaster cast of your feet taken and some special gel ones made custom by a lab.
The final gel ones are made bespoke to your feet and prescription and have a lifetime guarantee but cost around £200.
That's why NHS ones are shit. They won't pay for custom lab ones and just give you generic insoles with raiser tabs stuck to the bottom.
. I got some temps made by a proper pod and went to the NHS when my dad couldn't afford the private anymore, the soles I got from the NHS instead of gel lab ones I would have got private I've never worn they're that bad.
Including the £200 orthotic insoles for life it would cost you around £500-£600 to fix your flat feet/posture.
Or free to go through the useless motions on the NHS, when I've got steady cash flow I'm going back private.