Only one tree left!

When we moved in 20 years ago, we had 5 great trees. One was too close so we cut it down. Then there were 4. Then when Brad was having jaw surgery, the city cut one down because of disease. Then there were 3. 2 summers ago, one more fell to disease. Then there were 2. Last fall they said the one that shaded our house from the west was sick. (We could tell as there were very few leaves) Down it went, just the other day. Now there is only 1.

We have replanted 2. They are not very big. The shade will be sparse. The front of the house is now exposed to hot western winds and burning sun all afternoon! What to do....what to do? I think I'm going to buy a BIG tree this time!