Mumma626 just wanted to reassure you that you are not alone in feeling like this.
My boys are older than yours but my eldest was still struggle to potty train by 4. Boys do take longer. They get it when they get it. He still has bed wetting spells even now.
In terms of the washing, I recommend only washing the items that really need washing. I know when they’re younger that’s usually everything and several outfits a day. But maybe have a basket for clothes that have been worn but they can be worn again. Only wash the things with wee/poo/mud/caked in food. The other things wipe stains off with a wet cloth.
Speak to your partner and say the digs they are making are making you feel bad at a time when you are already struggling. If they say they are just joking, say well they hurt me so please stop. If they don’t stop after this then you’d have a DP problem. To say something to make you feel bad is abusive.
It is easier for your DP to come home and sort the house out because they have been out the house doing other things and not in with kids all day. Presumably you are looking after the kids while they are cleaning on these occasions? Normally you don’t have this advantage.
You said you have been to the GP. Are you having talking therapy or anti depressants? If not, go and ask for them.
Yes I have also been judged when I have been a SAHP. Domestic duties and child rearing are not valued in society but they are hard and have to be done just like earning money. Families and women make different choices when deciding who does what. They are all difficult and involve juggling and sacrifice.
Also remember that your children will grow and become more and more independent over the next few years. There is light at the end of the tunnel.