Don't feel bad, we all start from the same place, the beginning! Sounds like you've got it now.
The tip connection does not lift as high as the others because of the "notch" of the male plug tip. However, it still lifts enough to break the connection between tip and tip switch.
So the way you have drawn the jack connecting to the amp is correct.
You said "The tip is the white ( ground ) and the single circle around the shaft is the power", but it is the black that is ground, which is why it connects to the sleeve. Tip normally carries the hot signal, sleeve is ground.
The two contacts that you are not using here are called "ring" and "ring switch". They are usually only used when the jack will be used with TRS (or stereo) plugs.
The tip connection does not lift as high as the others because of the "notch" of the male plug tip. However, it still lifts enough to break the connection between tip and tip switch.
So the way you have drawn the jack connecting to the amp is correct.
You said "The tip is the white ( ground ) and the single circle around the shaft is the power", but it is the black that is ground, which is why it connects to the sleeve. Tip normally carries the hot signal, sleeve is ground.
The two contacts that you are not using here are called "ring" and "ring switch". They are usually only used when the jack will be used with TRS (or stereo) plugs.