Sorry you've had a hard time on this thread - but what's done is done. You have to be hardheaded and look to your future on your own now. You don't mention your grown-up children - I have a daughter the same age as one of yours and she and I mutually support each other - hope you have the same?
Step number 1, take action and get yourself a good divorce lawyer. Then you will be absolutely clear about your financial entitlement. It's no good second-guessing, armed with the facts you can make a clearer assessment of financing your future life.
When I was going through my divorce, my also divorced brother said to me 'there are no winners' and that's so true, it's challenging, emotionally draining BUT there's always hope for a better future after leaving marriage, and I hope you find it. Your one advantage here is that there are no young children - trust me, that involves you in another whole world of pain and guilt. You can be proud of the fact that you have given your children a stable upbringing - try and hold onto that.
My divorce happened at 40, I'm 74 now and apart from a few years have always worked, sometimes full time and sometimes part time. I did remarry very happily and while we're mutually supportive of each other, we maintain separate finances and jointly contribute to all bills and expenses. I would never put myself in a vulnerable position again, and he understands that.
So while 60 is a challenging age to do what you're doing, you absolutely can do it. Apart from a good lawyer, there's the CAB for advice and when it's all done, you might want to consider a bit of counselling to talk through your feelings and emotions. Take time to process everything (I spent hours on my own thinking through what had happened, being honest about my part in it and making my plans for the future). I suggest you do the same.
I suspect you will be very well provided for - most likely 50% of all assets. You will get HRP NI credits for those years you were bringing up your children, and hopefully your husband paid National Insurance for you, so you will have a state pension. People dismiss the state pension as low, but when you own a property outright it's very useful income. Do go onto the HMRC website and get a pension forecast. You maybe should aim to stay in the marital home until it's sold and then you'll be in a position to concurrently buy your own place. Make sure you choose a property that is easily maintained on one income, maybe a little garden that would give you a hobby?
You say you're lonely - it will take time to reconstruct the type of life you're seeking, but there's so much out there, U3A might be something you're interested in? I used to volunteer at the local Credit Union where there were some lovely people, my husband volunteers at the local cathedral - if you do something a couple of times a week, then you already have an inbuilt structure. Charity shops are also often looking for volunteers.
Try and take it one step at a time, it will be hard as you have always relied on your husband, but think positive - you have brought up two children and run a home, so you have many skills - now is the chance to expand your life and horizons.