I'm not all that "holy". Can I still be a priest if I'm not very holy?

Holiness—being like Jesus—is a lifetime endeavor for every person in every vocation.  If you don't see yourself as very holy right now, know that God will change you slowly, day by day and week by week.  When the time is right, you will be ready to be His instrument of grace for others.  But for now, go to confession and take advantage of the Sacrament of Reconciliation at least once a month.  Repent of your sins, go to Mass as often as possible and pray every day.  You will be surprised at how Christ-like you can become. Building an atmosphere in our Diocese that promotes vocations requires that all people become aware of the tremendous dignity of their call to holiness and a life lived in union with Christ, no matter what their state of life is.  We must be encouraged and encourage others to understand that the deepest longing of the human heart is to know and love Our Lord personally, to follow Him faithfully and to serve Him generously in whatever vocational state of life He is inviting us to embrace.  God does not call the perfect, he perfects the called!