You can see your numbers here:
https://www.ssa.gov/benefits/retirement/estimator.html
You have to register and give a whole lot of info, but it will give you the offical amount.
If you start drawing now it will reduce your monthly amount you will recieve for the rest of you life. There are different schools of thought on this. Some people say I may not live to see the difference in payments so I want to draw as early as possible, others say I would prefer to wait until full retirement age (for me it is now 66 & 10 months) and get more. If you wait until age 70 then you can draw your maximum monthy amount. All of the above are calculated on your lifetime earnings history.
Given your long list of problems (and being ugly on top of that
) you should be able to apply for disabilty and save the retirement to get the higher amount, but that is a double edged sword, because you can not be working and expect to be approved for disabiltiy. And it takes an unbelieveably long time to be approved.