Help me please!

Hi, I’m hoping to get some advice…
I’m a 33 year old male with a wife and 2 year old child.
I’m in the process for filing for bankruptcy as I owe approx £37k total to 4 creditors
I get £1420pm after tax but also contribute £100pm to a xmas savings scheme via salary sacrifice, which gets paid out just before xmas, so I get an extra £1200 on my Nov wage.
My wife earns approx £800pm and gives me £650 towards the household bills (remaining £150 she does whatever she pleases)
She gets approx £80pm for child benefit
We have 2 cars (I own 1 and she owns 1) she is a carer and needs her car for her job as it requires her to travel to peoples houses.
I work in a single place of work and use my car to get to and from work and to take my child to childcare (as my wife works early hours of the morning)
I pay out for the running costs of these with the income I get
I have suffered for a long time with stress and depression, the debt has added to these conditions.
The following is a list of expenses which I’m considering putting down on my BR application (please advise of anywhere you would increase/decrease and why):
Rent £378pm
Gas and Electric £100 (duel fuel)
Council Tax £82pm
TV License £13pm
Contents insurance £7pm
Life Insurance £25pm
Food including toiletries & baby £402pm
Clothes £88
Meals at Work £45pm
Sports/Hobbies/Entertainment £50pm
Internet & Satellite TV £55pm
Mobile phones £60pm
Dentist £7pm
Medication £15pm
Fuel and Parking £300pm
Spares & Servicing £37pm
Car Insurance £70pm
Road Tax £25pm
Breakdown Assistance £9pm
Hairdressing £14pm
Union fees £16pm
Emergencies £20pm
Total £1818.00
Leaving a Surplus of £252.00 (if my figures correct)
We don’t pay childcare but could I include something for this without having any proof for this as family watch our child and occasionally we buy them things like flowers etc as a thankyou, bearing in mind we would normally have to pay full child care costs if they weren’t around

Debt:
Loan £21500
C.Card £11750
Retailer loans £238 and £3170 (DFS & SCS)
Questions:
I have been paying the retailer loans as the monthly repayment has been affordable and haven’t missed payments on these. I have missed approx 2-3 payments on both Loan and C.Card I know this will be classed as preferential payments but I honestly thought I was doing the right thing paying back some of my debt, will the OR automatically give me a restriction order? If so, what will this be and what does this mean?

As I use my car to go to and from work, getting public transport would mean 2-3 buses to and from work meaning a travelling time of approx 2.5 - 3hrs per day. I also use the car to take my child to childcare (family). I wouldn’t be able to use the wifes car as she uses hers for work and leaves before me most days. Will the OR allow me to keep my car I have a 60 plate seat ibiza, worth probably about £1600, I have recently spent the past part of £1000 keeping the car on the road and feel if I'm asked to give this up and get a cheaper car then the new car might cost me more in the long run?

On the bankruptcy application it asks if i’m paying out for anything like furniture on hire purchase, although I was told by stepchange that both retailer loans are most likely classed as personal loans so should be included as a creditor, would i include them as a creditor or can i say that they are a priority bill and just include them when they ask if i pay for furniture? (sorry if this doesn’t make sense)

I have salary sacrifice for £100pm into a xmas savings club, which I use to pay for xmas, birthdays etc. Will this be seen as something I cannot do or would this be acceptable? Also where would I put this on the application section?

I occasionally do overtime, I have done this for the last few months due to my circumstances needing extra money but it is something which isn’t guaranteed and is starting to affect my mental health been stuck in work constantly without seeing any reward. If I go BR will the OR want to know about this? There is a section on the application form asking for this info but which info do I include? Is it just my last pay slip info or a payslip where I haven’t done OT?