Forgiveness

In Islam, if you made a mistake with a human being you should seek for their forgiveness for he/she you have hurt.

If you have made sin, seek forgiveness from Allah s.w.t. and repent to not repeat the same mistake again.

And it is only fair to correct your mistake and help the person you have hurt.

It is not hard to seek forgiveness from Allah s.w.t.

You do not need any intermediaries. You do not have to search for a person who hold a certificate/degree/master/phd holder for giving forgiveness in sin in order to seek forgiveness.