PIP tribunal advise

cactus

I have had MS since 2012 and applied for PIP in July 2017 as my condtion deteriorated. An assessor came to visit me at home and I was awarded standard daily living but nothing for mobility. I was very upset about that as I really struggle with walking and getting out and about, and my legs are very heavy and painful wth pins and needles constantly. I appealed the decision but with the same outcome so I'm now waiting on a date for my tribunal. But after looking for advise online, I am now incrediby scared of going for a tribunal and I thinking of withdrawing my appeal incase they take my daily living allowance off me. On the one hand, I believe I deserve the mobility component, but in the other hand I'm worried that by going to tribunal it may cost me my daily living allowance and I'll be left with nothing.
I do work part time and adaptions have been made for me at work including a car parking space and a seat with amended duties. I feel that I've been penalised for working as this was heavily referred to in my decision letter.
I've also started another 3 lots of medication since my original assessment, would this be taken into account at tribunal?
Any advice grately appreciated