I do not have a lawyer for my asylum case and I think Home office ignoring me

I have been waiting for more than 1 year 6 months.
should I get a lawyer for my case?
I would like to chase up my case and ask for update.
I have submissions and now waiting for the final interview.
now I would like to provide new evidences to make it stronger to my asylum claim, is it possible?
as I know you can only have further submission if your case has made decision.
Thank you.!
