Can i go bact to the seminary to become apreist or not?

I was once inn the seminary and when i was in the third year (thus theology one) i was very much disappointed so much that I left . two years later i found a girl friend and as am talking now we have one boy child but am not a happy man i feel that married is not my vocation what then should i do should i apply for other congregation or else have to forget about becoming a priest.