Of course everybody occasionally makes a wrong choice in the reviews. But there is something that skews the review-reviewing and makes it systematically appear bad.
The reviews of posts that were subsequently deleted don't show up in the normal views. When I look at the LQ review history using a moderator-only view that filters out only your reviews, the first eight of the listed reviews where you recommended deletion, 1, 2, 3, 4, 5, 6, 7, 8 - I didn't look any further so far - are all deleted. Seems like a decent quota. But you cannot see those reviews, as far as I know. Since you have less than 10k rep, I'm not even sure whether you can see them following the links.
Roughly the same applies to the reviews where you voted to close and the question was subsequently closed and deleted, you cannot (easily) find those reviews (if you can see them at all), so what you see is skewed by selection bias.
All in all, what I saw so far of your review history does not look alarming.