I sometimes purposely stay in a bad mood to try and get attention
Is it worth it to you, getting attention this way?
I always get attention when I'm grumpy
It is wrong to manipulate people into giving you attention. If you do it too much people might avoid you all together.
I'm the boss here, and I can do whatever I want.
Yes, you can do whatever you want. But it's better to get attention without manipulating people and instead by being fun to be around. They'll want to stay around longer.