Hallo and welcome (though its always sad to welcome someone going through the pain of separation)
Opening bills is easy, its paying them that takes effort! I've never put petrol in a car either.
Ok. Two things you need to consider
a) the emotional stuff. You can deal with this in whatever way works best for you. Cry. Scream. Hit a cushion. Stuff your face with chocolate. Read escapist trash. Whatever.
I've done the crying, smashing things, counselling, anti-depressants, holiday, house clear-out and 7 months on I am a happier person, though I do have down days.
b) practical stuff
as you have never worked, you will probably be entitled to some form of spousal support until you can find a job. You don't say how old you are, but there are lots of jobs that you could do or you could think about training for a new career. It may be scary but its also exciting! If you find a job that provides 16 hours a week you will be eligible for working tax credit and child tax credit. Check details here:
www.taxcredits.inlandrevenue.gov.uk/Qual...atAreTaxCredits.aspx
As you are only adult in the household you also qualify for 25% discount on your council tax.
Once you start taking action to sort things you will feel empowered. I felt so chuffed when I sorted out my internet connection without my ex. It's liberating, believe me!
I have no intention of letting a man make decisions about my life ever again.
I was with my ex for 31 years so you can see I've had a bit of adjusting to do. He is with younger woman and her 2 young children (except every other weekend when her ex has them and they are a couple) and I am with two angry and disappointed teenage boys, the eldest of whom has left school and got no job. But I have learned to do what I can and not to worry about what I can't.
You'll get there - but it requires time and action.