No you don’t have ADHD, you read some symptoms on the internet and are now using to justify your behaviour.

Exactly what it sounds like. 99% of people you see quoting that ADHD is the reason they can’t get jobs or commit to doing things or do simple tasks themselves is insane, most of its just laziness. Life is hard and you need to try. If there was not a benefits scheme, I wonder how many people would still be ‘unable’ to work due to this.
(Not to disparage those who actually suffer with this, one of my friends had it diagnosed as a child, he has a stable job, cooks healthy for himself & blames his untidy house on his own laziness. The only reason I even know he has it is I saw his medication when we lived together)