This is known as the treble clef staff and that swirly symbol on the left is called the treble clef. Notes on the treble clef are typically used for right hand in terms of keyboards, but left hand can also be in treble clef. You will have to remember every note but, trust me, it isn't hard at all.
A good way to remember this if you're on keyboard is to look at the bottom C of the stave and realise each note going up is just the next white note on the keyboard.
This is the bass clef staff and that curly symbol on the left is called the bass clef. Notes on the bass clef are typically used for left hand in terms of keyboards but, once again, it can be used for any hand at times. You will also have to remember each note of the bass clef. An easy way of doing this is just changing the bottom C of the treble clef to an E and going up each white key from there.
This is the grand staff and is what you will commonly see in all of music. It is the treble and bass clef put together. The extra smaller lines holding lower or higher notes are called ledger lines. You can work them out with common sense if you realise each note is just going up in white keys of a keyboard (C,D,E,F,G,A,B,C,D,E,F... you get the point).
Activity: Without looking at the grand staff above and using your knowledge of where the C is on each clef, work out each missing note letter in your head or on paper:
If you can 100% remember each note name, move to lesson two. It might be a big ask, but the first set of lessons will have a lot of remembering things because they are the building blocks of everything else.