*sigh* I'm trying really hard to control myself right now.....
Tonight my wife and I are going to the neighbour's house and we're going to make my pizza. I tried making some sauce, and I'm having all sorts of difficulties AS PER USUAL! I have NEVER been able to successfully make a sauce. What the heck am I doing wrong???

I bought a 28oz can of San Marzano tomatoes from the Italian grocery. I emptied the can of tomatoes, liquid and all, into a medium saucepan, broke out my potato masher implement, and ground up the tomatoes. I put in some extra virgin olive oil, then some salt, then just a bit of spices (1 tsp basil, 1 tsp oregano, 1/2 tsp thyme). Brought it to a simmer. The whole thing was liquidy. OK, fine. But after 30 minutes of simmering with occasional stirring, the thing was still completely liquidy, except for huge gompy chunks of the sort of yellow-tinged skin of the tomatoes!!!

It's a mess--nowhere close to a sauce. Smells good, but that's it.
I'm so disappointed I want to cry. Am I not grinding the tomatoes up enough? Am I supposed to dispose of parts of the tomatoes? Am I not simmering it enough? Is there something else I'm supposed to be doing??? I want to curse right now but I'm going to hold my tongue......BIG SIGH............
Any help would be appreciated for next time.
Dave