I feel for you, it's so hard, but it sounds like you need to stop being used by your DH and letting him go off to his football and doing whatever he wants, leaving you to deal with it all,
Have you actually said to him 'I can't cope, I feel like I am going mad, I need more help?' Saying you are tired and then letting him go off is giving him a mixed message and let's face it, you actually do have to spell it out to men, they don't 'see' what is going on, so no won't get it.
If you have said this, very clearly then you need to get someone else a close friend, his parents but someone to tell him, you also need to ask others to help you too, again,they only see a crying baby and may not like to step in, especially if you have always been a coper, is there anyone who can have him for even just an hour, to let you have a bath/Shower, or are you reluctant to leave him?
Have you parents near or friends? if not tell your health visitor, or contact Sure Start. Something needs to change, only you can make that happen if your DH can't see it,. It isn't fair, it can change, but you have to step up, which isn't easy when you are so overwhelmed.
You can do it OP, you have to.