LSD is worth the experience. If you're in the mind set, and as already mentioned, around people who aren't going to act like children.
It is very intense, but one blotter tab is likely not going to affect you that much anyway. If you do decide to try it, don't take half. Unless it's particularly potent stuff, that's just wasting molecule.
As mentioned previously... if you aren't in the right state of mind, around the right people, or in a good environment, this can potentially lead to a bad trip. But with the amount you're trying, it's not likely. Overall, just be safe, and think critically about your life. You'll get much more out of it that way. Just go with the flow, and don't fight it. And if you think you aren't ready, then you aren't. Simple as that.
~Ethno