Facing problems when practicing with a metronome and backing track is a common challenge. Here are some of my suggestions to help you overcome this problem:

1. Breaking down the Music Parts:

Instead of trying to play the entire song, break it down into small parts and focus on practicing one part at a time.

2. Reduce Speed:

Start at a slower pace. Once you comfortably settle into the rhythm, gradually increase the speed.

3. Using Metronome at Low Speed:

Start at a low speed on the metronome and gradually increase as you feel comfortable.

4. Play along with the Original Guitar:

Try playing along to the original music or the singer's recording to get a feel for the musical structure and rhythm.

5. Pay Attention to Off-Beats:

Focus on listening to off-beats to stay steady in the beat.

6. Practice Listening to Accompaniment Music:

Listen to the accompaniment regularly to familiarize yourself with the structure and rhythm of the song.

7. Play With Recording:

If possible, play along with the recording for support from the original music.

8. Accept Mistakes:

Sometimes accepting mistakes is important to progress. Keep practicing and correcting mistakes over time.