Hiya rolan,
Not sure why you feel shamed because you play the guitar. Truth is not many people can play the guitar as well as you. Do you get embarrased by being asked to play it all the time and being dragged out and having people focus on you?
Your talent is for you. If you dont want to be focused on just say no. I dont know if I have helped you or not. But I hope you can find some joy with having the capacity to bring the instrument to life. Not many people can do it well.