Welcome to an exercise that will keep your interest alive and help you improve your technique, particularly ghost strokes.
Let's get started!
1. Begin with a simple/easy reading page consisting of quarter notes and eighth notes. It's absolutely fine if the page includes rests.
2. On your snare drum, gently play a sixteenth note pattern (R L R L) at the softest volume possible, without any accents.
3. As you read down the page, keep the soft sixteenth note pattern going on the snare drum, and accent only the notes that are written on the reading page.
*Tip: When playing a page with only quarters and eighths, you'll notice that the accented notes fall on your right hand (or left hand if you're a lefty!). Once you've mastered this, it's time to change things up!
4. Introduce a reading page with sixteenth notes. However, even though you're continuously playing soft sixteenth notes, only accent the ones that are indicated on the reading page. Keep the rest of the notes soft.
5. Eventually, move the accents to different toms while keeping the in-between notes as soft sixteenth note fillers on the snare drum.
For additional resources and practice exercises, consider using "Stick Control" by George Lawrence Stone. This book is highly recommended for improving your skills.