When starting something new or starting on a personal development journey its easy to look around and start comparing yourself to others. Look the truth is we all have our own journey and are all on deferent places on our journey.
Its ok to look at others for inspiration , its actually good to have someone to look up to or inspire us. Whats not good is to compare and judge ourselves to others. You are the only you there is! And just because someone seems to be further along than you or have more success doesn't mean they are better than you, and certainly doesn't mean you cant achieve what they have. The truth is they may have been working at it or had more practice so look to them for inspiration.
Another thought , dont try to be copy of someone else be you. You might do something similar but make it your own and do it your way. Being your true self will bring you more success and happiness! So what are you working on?