Hello and help.

Hi good folk.
I'm here because I am about to talk to my wife about plans for separation and I want to be on firmer ground and not give in to anything she asks for.
We have a detached property with no mortgage. One child of just pre-teen. Wife has been the main bread-winner over many years with my self-employed business going from bad to worse. In recent years I have been managing a small Airbnb on our own land and that has been my main income which has primarily been paid into joint account.
The marriage has broken down but not due to infidelity. Lack of sex has been an issue for me but unreasonable behavior and lack of love generally from my point of view. She'll probably say my inaction in finding work, though TBH most of my time has been as a sort of house/ garden husband.

She has said she wants us to think creatively. She desperately wants to keep house with child.

I have no income - normally Airbnb would give me a small consistent income. I have some inheritance which could keep me going for a while, but I am to get a job - knowing how difficult it will be.
My question is this...
I understand she cannot kick me out of house and to me the Airbnb that I am currently living in would be the perfect stop gap. BUT going forward we are just too close for comfort. I cannot afford to buy (or rent for long) without selling the jointly owned house.
What is a reasonable or expected outcome? 50-50 split of house? Some friends have said less as she's the mother with more rights.
Can I force her to sell so I can have my percentage to move on with?
Sorry for the long-winded first post.

Welcome to Wikivorce but sorry you find yourself here.

Financial settlement on divorce is about needs first - so need for housing and income now and in the future. If there is one child the strict ndneed for each of you is a two bed property. You will each need space for your child to stay.
If the former matrimonial home (FMH) is much bigger and a mortgage cannot be raised to buy the other party out, it may have to be sold.
Both parties are expected to maximise their incomes.

The start point may be 50:50 of all assets but the outcome may be different depending on circumstances. To help more effectively we would need more information about your situation.

Ages
Incomes inc any benefits
Children - ages and proposed arrangements for them
Market value of FMH
Outstanding mortgage
Size of FMH
Pensions - type and CEV
Value of other assets in sole or joint names - savings, shares, items of vakue over £500.
Loans/debts in sole or joint names and how they were accrued.

Hadenoughnow