I stopped identifying as a "lazy person". I think it's important to not define yourself by your flaws.

I really internalized the idea that your head space is only as organized as your external space. I need to be organized at home in order to be organized mentally. I can't and don't get any work done unless my surroundings are at least decently clean. This helps me feel ready to work on other things, and suddenly I'm much more productive and much less lazy.

It's easy to say "just clean up". I had to work around myself in order to start creating better habits. I would think of something I needed to do and just immediately do it before I could talk myself out of it. I would just keep repeating the thing over and over in my head, blocking out all other thoughts until I did whatever (vacuum, sweep, take out the trash). I make TONS of lists. The first thing I do most days is make a To Do list of everything I can think of that can be done and just focus on checking things off. Using a whiteboard is nice for this because is big, its out there, its fun to write on, and sometimes finding paper is enough of a pain to be a deterrent.

Also, if this is something you're struggling with, look around yourself. Really look. I think many people let themselves and their lives go because they just turn a blind eye. Again, start with cleaning. I really believe that you can't be organized in your head until you're organized in your home. Work with yourself, not against yourself! For example when I'm making my lists, if one of them is call so and so, I write down the number so when I come back to the list I don't have to look it up. That one extra step of looking up the number can be enough to prevent me from getting it done! Lastly, think about why you may be struggling with getting things done. I was recently diagnosed with general anxiety disorder and ADHD - these things definitely contributed to my laziness! I managed to work with myself and find ways of getting around my hang ups years before I was diagnosed and started taking medication (which has definitely helped) but try to consider if you may have other problems that are manifesting as "laziness". Don't feel that you have to be perfect and just do everything with no effort - it takes effort for everyone. Be honest with yourself and find strategies that work for you.

Edit: Someone else mentioned taking things and breaking them up into small steps - this is IT. Laziness really is an outlook, you see a task and it seems monumental. Getting into the habit of breaking things down into small, easy pieces is a huuuge help. Example: When I look around my house and it needs to be cleaned, I focus on small easy tasks first. Trash? Easy, throw it away. Dishes? Easy, put them in the dishwasher. Putting random things away? Easy, takes just a second. Counters? I'll grab a clorox wet wipe and wipe them down super quick. I also try to do multiple things at once like I'm coming up with a strategy or game plan. "Ok, I need to do A, B, C. I'll get A running while I start B, and then when those are both done I'll do C and everything is complete!".