William P- From this thread and another thread I am going to go on a limb and say this to you:
I don't like to bad mouth people's parents to them - but you have reached an age of discernment as far as religion goes. Yes, that is scary.
I would strongly suggest that now that you have taken some steps to reach out for some information that you may wish to start attending mass on your own. If you would like to start attending CCD or an RCIT program I do not know how that will work out without your parent's involvement but you can speak to your pastor and then wait until you are 18 and go through RCIA to receive your Sacraments if necessary. At this point you need to learn on your own.
What I do need to say at this point is that yes, missing mass without reason minus illness or taking care of a young child on Sunday (or Saturday evening) is in violation of the commandments which we have been given by God and can equate to mortal sin. Please, allow me to say what a Catholic Bible study group said for me a long time ago while my Catholic father was hiding out in my mother's Protestant Church: Lord, may this young man, live his life to be a beacon of light for his peers through your calling.
God bless you William in your path and may the Holy Spirit guide you to do what is right for you. It is only when we find that peace for ourselves that we will be able to convince anyone else of what is right for them..