Hahaha. The best advice I have for you is to start at the very most basic level of learning about your iPhone 4 (HAHA).
Hmm for you…. I recommend the book “iPhone Manual for Beginners – The Perfect iPhone Guide for Seniors, Beginners, & First-time iPhone Users“. It’s a great source for MOST Seniors, Beginners & First-Time iPhone users but I can’t really see you reading this without scaring yourself.