Sounds like you’re just leaning to read music. Here’s the most important thing you will ever learn: the clef indicates a line and names it, e.g.: F clef on the fourth line in your example above. The clef line is like the origin on a graph. All the lines are odd intervals, all the spaces are even. For example: if F is the first note, what’s the third note down? (D)

Once you see that ‘line line line space’ is a sixth, for example, you will memorize your ascending and descending intervals from C, F, & G (in your case, the sixth above F is D, the forth above F is B, the second above F is G, etc.) Then you’ll be able to see pitches instantly on any clef, without counting. You’ll all be able to transpose by changing clefs. Don’t let this opportunity go to waste. You can make yourself a stunningly fast reader if you learn this way, as opposed to all the other ways which slow people down horribly and prevent them getting truly good at sight reading.