Hi.
Well, the first step is definitely to call the parish and ask what can be done.
I just want to caution you not to get discouraged if the person on the other side of the phone seems not so eager to help. Sometimes secretaries say they are going to do something and they forget, or The priest never gets a message intended for him or a priest can’t get back to someone for a week or two. It’s just how it is sometimes.
If you do not get good help at the closest parish then try at another parish. I know it would be great to be helped and go to rcia at the closest parish but sometimes only a parish further away can help. I help teach rcia at my parish and we have people from tens of miles away and we live in a metropolitan area.
The other thing is that attending Mass on Sundays and Holy days of obligation are required. “Honor the Sabbath and keep it holy” it’s God’s commandment not just The Churches that Mass is non optional. Unless you can get a dispensation from your senior pastor you must go to Mass once you are Catholic. I have told my boss in the past “sorry I must come in 30 minuets late, I need to go to Mass” etc… However I don’t know your situation so do not just do what I did if it would get you fired, talk to a priest about it
Welcome and God speed!