Ok,the panic is normal I think as the financial realities set in. No matter which way you look at it, in most average income marriages, you will both end up substantially worse off sadly.
pas people have said look at all assets. Pension is a biggy, and if yours is bigger you may be asked to do pension sharing, so pushing for more on house may backfire.
first, have you checked “fair settlement” rules on divorce and how they work to ensure you understand impact in your divorce. Go to link above on board to ADVICE NOW and their guides . There’s also one on completing form E/D81 so you can see exactly how to complete to include everything.
secondly, think seriously about the likely outcome based on fair settlement, if you go to solicitor and “fight it “ you may well end up with nothing significantly more but will have spent months and thousands fighting it. Some solicitors are more than happy to offer you what you want to hear and let you piss thousand of pounds down the drain. In some cases it is better to understand fair settlement for yourself, go through the process of painfully accepting that and being able to visualise what your new “poorer” life will be, and then do it all through consent orders with minimal solicitor involvement. Not saying if there’s financial control, lying, obstruction or arguments don’t use a solicitor, but it is better to really get yourself to a point where you are ready emotionally to accept your new financial situation and you’ve informed yourself about what that’s most likely to be.
sounds like keeping the home is a stretch sadly, that’s hard to take in. You’ll be going through a type of grief process where your future plans have b en lost, and it will take a while to emotionally process the new reality and be able to plan positively for that.
ADVICE NOW is a great resource, use it.