God bless u and yr family.
u don't need to worry about confessing in more than 1 church, as far as i know, no one banned it!
did u 'confess' u were going to be orthodox?
may God bless yr priest as well and compensate him and the church for yr loss.
each person has to find his / her own path, but don't burn yr bridges (unless they are bridges to people who will tempt u into a life of crime) and keep yr friends. as u learn more, u will have things to teach them.
remember in all things, that the prime reason for joining the orthodox church is to be close to God and glorify Him, much as it may seem sometimes that it's about politics and showing who's the smartest.
[edit for typo - this computer has most of the letters rubbed off from over use by my colleague..]