When it comes to learning how to read piano notes, there are three aspects of the process to acknowledge:
1) Reading the notes on the grand staff (reading the music itself)
2) Knowing the names of the keys on the piano keyboard
3) Understanding the association between #1 and #2 above
A common initial misperception while learning how to read piano notes (or how to read the grand staff) is that the upper staff (treble clef or G clef) and the lower staff (bass clef or F clef) "should be" identical. It's a little "trick" that gets played on the mind. However, the illusion doesn't last long when one realizes that the staff is a continuum and not meant to be interpreted that way. This is clearly explained in this FREE mini eBook that puts reading the music staff and making its association to the piano keyboard in its proper perspective.
To make the process of learning to read piano notes more fun and productive, it may be helpful to adopt the guidance of a piano method that gradually takes you through progressive stages. As you make progress, it serves as a great "measuring stick" which can provide you with more and more incentive for wanting to continue. That isn't intended to be construed to mean that any time limits are imposed on you (nothing could be further from the truth). You follow this all at your own pace.
In addition, you can take advantage of a number of videos if you use that link above (200 of them). It's proved to be a popular method as it also introduces you to a number of different musical styles. 500 audios also come with the package. All of the material in this piano method is available via instant online access.
As you become more and more acquainted with the notes on the music staff and their association with the piano keyboard, your confidence will escalate. You'll be opening yourself up to more and more possibilities, as there is a whole world of music to be explored. The more competent your reading skills, the more you open yourself up to, whether your personal tastes lean toward classical music, jazz, latin, pop, or any other genre. Once you master the skill of reading music to even a moderate degree, you enjoy leverage when it comes to being able to play your favorite tunes.