The Roman Catholic Church, Orthodox Church, Coptic Church, and Thomasines all practice the sacrament of confession.
There may be other's I'm not aware of.
Do a little soul searching and just "do your best". It's OK to be a bit nervous, most are.
Understand that most likely what ever you are going to confess the priest has heard it 100 times before.
Thanks for your support.
I hope I get a patient priest.