What does it take to motivate me?

I am not really a lazy person by nature. So, why is it that I have a million things to do in my yard and can't seem to get motivated to do any of it? My yard is kept up to some degree ( nobody driving by would make comments either bad or good). But I have way too many weeds, bamboo and ivy that is taking over, I havn't planted any flowers yet, and a chunk of my side yard needs sod put down. Everytime I sit on my porch I contemplate these things. Today, I even went to Home Depot garden Center. I walked around and left empty handed. It all seems too much. I even tried to rationalize it yesterday by telling myself; what does it matter? once I die in 40 years all my yardwork will mean nothing. Why do we always have a "to do" list? This bugs me. All it does it make me feel guilty for not finishing the list. I want to say screw the to do list, but this isn't really right either.
I did manage to try to kill the mole that has been tearing up my yard. I tried the poison, this only seems to give him more energy to dig more holes. So, upon advice, I bought these sticks that you light and shove into the holes. I felt somewhat bad that some creature was down there breathing in the toxic gas and dying a horrible death. I see no new holes today, so I'm guessing it might have worked.
So, I"m not motivated to plant flowers, but I was motivated enough to kill another living creature. Oh, the guilt is immense.
jb