Hi James,
Keep posting 
I echo what others have said - if you can go private then I would. Make sure to choose an MS specialist neurologist rather than a general neurologist, and maybe see if you can get recommendations. I’m in West Yorkshire and can recommend someone if you’re anywhere near me 
I found spending £250 on 40 minutes with an MS specialist neurologist privately was money very well spent, for my mental health if nothing else!
You then get fed back into the NHS system for treatment and continuing care.
In terms of drugs, my personal choice was to go on Kesimpta. I agree with @alison100 above - get the most effective drug as early as possible to ward off significant disability for as long as possible.
I can’t remember if I posted this on one of your other threads, but Dr Gavin Giovanni (an MS specialist neurologist at Bart’s in London) has a very good article in his MS Selfie blog about whether to choose treatment or not and how to choose.
Personally I have found the support around taking Kesimpta to be excellent. It is a self injection drug. You take three weekly loading doses, then miss a week, then take it again the following week, then whatever that date was, you take it that date every month.
It looks a bit like a big whiteboard pen. You don’t see the needle. The needle is very small and hurts very little and only for a few seconds.
You do some checks (is it in date / any damage etc), then take the cap off, then push it against your leg, it clicks once to say the needle is going in, then about 10 seconds later it clicks again to say it is nearly done, then you count to ten, take it off your leg, check it again, and put it in the sharps bin.
A medical supplies company delivers it to you, along with a sharps bin (which they take away and replace when full).
You keep the medication in the middle of the fridge.
The first time you do the injection, a nurse comes to explain everything to you, show you what to do and practice with a dummy pen (no needle/ medicine in it), then supervises you doing it with the real pen for the first time. Then they ring you to check how you’ve been, and after the first few doses to make sure you are getting on OK. You can also contact them for up to a year (where I live - may be different for other areas) with any questions about the drug.
You can also have access to an app which has videos of how to self inject, lots of information and support and calendar / reminder function for when to take it. Bit of a gimmick but quite helpful 
Some people feel quite flu-y after the first dose and less so after the second dose; both for about 12-24 hours. I didn’t feel too bad - tired and heavy legs and a bit off. I took some paracetamol and went to bed early. The next day I felt slightly sicky and slightly hot for the morning but fine to work.
The following doses I took it in the evening and had heavy legs and tired but just go to bed and ok the next day.
I like that it’s very convenient, and that I am in control of it.
It’s also possible to travel with Kesimpta. You can take it out of the fridge for up to 7 days and then put it back in the fridge and use it within 7 days after that. I was also told that it’s not the end of the world if you take it a few days late eg if you are away. If you take it late you then adjust the date you take it going forward.
Sorry, I have waffled on (again!).
I hope it’s been helpful. When I was in your position I reduced my anxiety by finding out everything I could, but I realise people deal with things differently.
Go gently
Alison