~ Only don't make another job out of it. Just have fun playing. 
$5-$10 buy-ins are about my level too, and although you can still see those all-inners in such tournaments too, you can simply ignore them, because there's only a few of them, one at a table or even less. You can't be ignoring them if there's half of the players like that.
Surely so, i tried to make poker my way of income several years ago. I spent 10-12 hours every day playing 4 tournaments one time. It was awful for me. So no more job in poker $5-$10 buy-ins are about my level too, and although you can still see those all-inners in such tournaments too, you can simply ignore them, because there's only a few of them, one at a table or even less. You can't be ignoring them if there's half of the players like that.
Yes, it is easy to ignore several, always there are someone who ready to catch them.
This is interesting. Playing at so many tables at once has never worked for me. I mean, not never. At first I thought it was the best way to play poker, but it didn't take long before I realized that it wasn't worth it.
What about you? You said it was awful because it was hard, but how about profitability? Was it negative, or just too small?