When we are singing songs, we try to sound like the studio version of artists.
We forget that these songs may be highly processed and even auto-tuned.
Hence, it's a good idea to listen to covers and different renditions of the song and gain perspective.
Then, try to put in your own variations and make the song your own. Only then you can grow as a singer.
Imitation helps learn variations. But always stay in touch with your style.
You may be the next Adele or Sam Smith. So let people know your voice for you.