Depends on what I'm going to the Dr for. If it's a physical injury that's bearable but not going away I can get an opinion from a pharmacist first then go to a Dr if they recommend, if it's something like a chest infection or other illness I can call a non emergencies line to get a Dr's opinion and they might ask me to come in for a physical checkup. If it's something more urgent than that then I guess just turn up at A&E and probably spend a few hours waiting in triage till there's a Dr who can see me.
The NHS is really struggling so I try to avoid going to the Dr for minor stuff but most of the time when I've deemed it big enough to need to see a Dr it's been pretty smooth for me. Only time I've had problems was when I injured my knee and couldn't walk properly then got bounced around for months after my x-ray showed that I hadn't fractured it, I was supposed to get a scan to check if it was muscle damage and when I turned up for said scan they just had a physio therapist tell me I need to walk on it more to exercise the muscles in my kneecap after the swelling from the initial damage weakened them.