DLA - useful websites when claiming

I know that this has been posted about before, but I can’t find the details. I’ve been advised to apply for DLA so I need all the advice I can get. I remember reading something about a website to help making claims, but nothing else about it. If you could point me in the right direction I will be very grateful. I haven’t wanted to know about DLA, but doing a little bit of cleaning has really knocked me out. I haven’t been doing any cleaning that would make me fall over and really knock me out you’ll be pleased to know. But I have to accept that the house is in a disgusting state and I need help. Which means looking into DLA.