ESA to UC, placed in LCW group, asked for mandatory reconsideration

Hi guys i need some advice i am really stessed and worried about the whole process and it is really taking a toll on me. I was in the support group for ESA, i was not required to have any meetings or prepare for work, because of the pandemic and work from home jobs being more common i wanted to try and get into work and see if i could handle it with my condition. I found a job that was fully remote and ended my ESA, i lasted about 6 weeks in the job and i realized i was not able to cope, my health was deteriorating a lot and i was having panic attacks daily.

I ended up leaving it and wanting to go back to my ESA, but i was told i would have to start the process all over again and apply for universal credit. I felt this was very unfair but i went ahead and applied for it. I had my work capability assessment and they placed me in the LCW group, which meant i would get a total of around 334 a month, when i was previously getting around 550 a month on ESA, this is more than 200 less than what i was getting previously. It has all been very difficult and i have had to borrow money from people to survive on this amount, it was hard before when i was on ESA but now it seems like an impossible task. I have asked for a mandatory reconsideration about 2 weeks ago, i don't know how long it will take and i am worried sick. I am really scared they will keep me in the LCW group and i will have to go tribunal, i am unable to leave my house and have no one to help me with the process, i can't even bring myself to call citizens advice because of how overwhelming it will all be. I have checked the criteria for the LCWRA group and i am 100 percent sure i meet it, so i am confused why they didn't place me in it. Can you guys offer me some advice, how long does a MR usually take? Is it unlikely they will change the decision? I recieved the initial decision about 13 days after my assessment, so am i looking at a similar timescale for the MR? Thankyou