accepting I need to get a wheelchair and info and help needed with that

Please excuse typos, tics mean I have difficultly typing I try to correct them but tat can often ake them worse, so apologies in advance, trid to corrct as many as I could without getting more syressed and making it worse.

so for a while now I have realised that I need to get a wheelchair. In fact I went to my old GP last year in May and asked to be referred to wheelchair services, sh was rude and horrible, she raised her voice, saying no and told me I had to learn to control my tics, I explained that I can't and she said I either control them or I stay at home. Well I changed to a different GP surgery straight away.

My motor tics as part of my tourette's can cause a lot of walking difficulties which include, my egs just stopping working as in I can only stand for a few seconds if holding onto something, I fall often when walking, my legs can tic whilst walking and cause me to look like I am drunk which means my walking is all over the place and I can hardly walk, certainly can't manage stairs, Ican end up walking on the sides of my feet which is extremely painful, my tics can cause me to suddenly run into the road, or into walls/fences etc, so all this can make walking, or standing for a long time very hard and/or very painful.

Thing is though after my previous GP experiece I won't go back to the new GP and ask about wheelchair services because I am so scared o fthe reaction and of more rejection. So I am thinking of buying one but keep putting it off. I just feel like getting a wheelchair is so final and I'm scared. I know there is nothing wrong with using a whelchair, I just feel I would lose things I love, like hiking and having hired a wheelchair when I went to London with my partner and my leg tics were suddenly really bad I was terrified being in it. I know that, that was an old, heavy one, but I was terrified going on any sort of slight incline, I panicked doing any slight curb or incline n my own andtipped backwards slightly once andit terrified me and athough I understandyouget used to it, I have amassive fear of falling, even staning on a chair can send me into a massive panic, where my legs shake and I ave a panic attack, so suddnly a new thing which could involve falling and I freak out. I'm also concerned I would never judge when I wouldneed it. Like I can go out and my legs be fine' but then whilst out my legs stop working and I'm all over the place and having to do stairs on my bum (a lift was out of use at tis one particular occassion) and thereisno warning. Just wondering if those who don't use a wheelchair full time, how do you detrmine when you ned to use it. do you say have rules like if you are going to a certain place or out for longer than x aount of hours you will se your chair.

also just wondering chair wise what I should go for, should I get one off the shelf for about £300-£400 but it isn't one that can be customised for me, but I've read reviews of a few and people say they are good. Or is it worth spending more, the £1000 mark and more, for a chair that can be customised wth certain things to suit me better.
I've emailed a place which sells a variety of chairs in Manchesterand asked if I can come into chat to someone, but I haven't emailed back sortng out a date, plus a friend warned me that they are sells people, even if theycan give advice. But I tought here would hopefully be a good place to ask.
thanks