I love people. i hate to hurt them. but why do i always hurt them although i hate to do so and didn't mean it?

the hurtful things from me isn't out of my bad intentions, but my stupidity which had caused the stupid, damn, technical problem. i can easily want to do those good things, but without realizing it, i'm too stupid, not conscious and skillful enough to handle it that i tend to get it imbalanced, less approppiate and this can anytime ended up hurting the otherside since people can always take things personally. i wish i could have it all peace on me and everyone, not that i seek for other's approval or name or perfection, but it's just about sharing the smile with others. but why must i always end up in hurting them out of my stupidity, while i don't even have even a drop of mean intention? does this also shows that stupidity is a subconscious way to hurt others, although you hate it?