Colossians 1:27 ESV "For God wanted them to know that the riches and glory of Christ are for you Gentiles too. (non Jews) Christ lives in you. This gives you the assurance of sharing His glory."
You will always come across people...….coaches, fellow team mates and friends that will tell you what you cannot do. The same is true if you decide to give your life to Christ. Without a doubt you will get negative feedback from someone. I would give you this advise. Do something your future self would be proud of. You are not the opinion of someone who does not really know you!! Strive for excellence that is "In Christ." Do not let anyone else cheat you out of your personal relationship and personal walk with Christ! Once you accept Christ as your Lord and Savior......devote yourself to prayer and reading scripture. Find a scripture centered church in your area. Reading scripture is just one of the ways God communicates with us. Be your best at what you are pursuing and give Christ the glory!