Welcome to Android Central! I moved this from the Introductions forum to the Ask A Question forum.
Which phone? What do you mean by 3 touch vs 1 touch? Do you mean that you have to tap something 3 times to select it? If so, then you may have turned on an Accessibility feature, like Talkback: https://support.google.com/accessibility/android/answer/6151827?hl=en