Or let him go and break up.
DP probably has ADHD. He leaves everything to the last minute and needs reminding about everything. Will start the next sentence before he's finished the previous one, easily distracted etc.
He also has many good qualities, completely kind, a vibrant enthusiasm for life, I could go on.
I am the opposite, completely organised and start to worry about things being late long before they are due. So for example, I've been reminding him that his driving licence needs renewing before our holiday (where we plan to share the driving) for weeks. We go in 2 days and it's not done. In his mind there's loads of time still, but....(you can drive on an expired licence provided the application is in progress).
Similar things happen a lot. Things I should let him fail at, if needed rather than doing his worrying for him and tbf he does very rarely actually fail, he'll get it done, it's just always down to the wire.
He's not going to change, so how do I come to terms with the fact that this is the way he lives and stop stessing over it all?