As a matter of urgency gather all your statements and other bills information and make an appointment with an advisor to go through them all to find out what has and hasn’t been paid and what that rent money has been spent on
I am unsurprised that bad mh could cause you to not realise s/o wasn’t working, or that there was extra money in the account, but have to admit I am as confused as PPs as to how the extra money is all spent without noticing - you need to find out what you spent it on as that’s important information for future budgeting
we may not all be able to be on top of every penny but is our responsibility to do what we can especially if we already know we need a bit more help than others
see this time as not just a one off mess needing to be sorted but as a chance to get help to set up systems to help you manage now and into the future
get that help to set up your finances so that you have a budget, d/d and s/o so if v ill at times you can concentrate on your health and not be missing payments and building up arrears over regular bills like rent, gas, elec, car, nursery etc
use budgeting book or app, set calendar alerts for payments in/out, use phone alarms to remind you to check your account
it’s not shameful to need extra help, and it is really sensible to use all the help we can to form support systems and structure for times when a crisis might hit
bc a crisis can hit anyone, at any time