Your environment is a part of you.
If you live in a dump, you are a dumpy person. If your house is full of trash, you are a trashy person.
The good news is, your environment is one of the easiest things to change about yourself. The initial cleaning may be a hassle, but if you stop making a mess, you'll never have to clean up a mess again.
Don't walk past an abandoned sock.
Don't store dishes in the sink.
Don't leave things on tables.
It isn't hard.