Also, Tor is slow and I hate using it. Besides that, so many posters have used Tor to post CP that many IPs you're behind are banned anyway.

You're not going to get in trouble just for seeing CP on an imageboard, though. Also, lolicon isn't necessarily illegal in your area.

If you're really freaking out, just delete your cache entirely and run software that securely erases data from your HDD. I personally prefer not to keep cache, history, etc between browser sessions, even though I don't look at illegal material (intentionally).