I know. It's really hard, but you gotta think of you too. Don't worry, I'm telling you this, but won't do it myself!
MJ is only little & things are hard at this time anyway without 2 extra kids to deal with on your own.
I'm forgetting alot too. I just walked away from the sink with the hot tap runnung slowly - was gonna wash up - to go to the toilet. Finished on the toilet & heard DS crying, so I walked back past the sink picked him up & started feeding him. It wasn't til I heard water on the floor I remembered the tap was on!
Then there's doctors appointments & crap. If it's for the kids it gets done straight away, but for me....Sometimes I get there.

Just be careful of PND. Hopefully you'll be fine, but i've been through it & it's not fun.