I'm not an expert, so forgive me this post, but it seems to me that God will take care of your financial concerns. In becoming a priest, you are "taking nothing with you", as Jesus sent out His disciples. From what I've noticed of priests whom I deeply respect, they have given themselves entirely to the Church. Your accounting skills would be extremely useful at the diocesan level, but if you're thinking about a side-job for supplemental income, I would sincerely reflect on what you believe is calling you to the priesthood. Are you prepared to be told, "no, you can't do accounting work on the side"? Will your heart be lured away from your priestly office when you consider what you can make at your side-job on a fulltime basis?
As for girls, I suspect you will have your share of opportune encounters with women during your training. God works in mysterious ways, so don't discount the possibility that God will challenge your committment with the people he will bring into your life. If you are truly called, you will be at peace with the thought of celibacy, when the time comes to make a decision. If you're not, it's okay, at least you know you're probably not called. Better to make peace with it one way or another before being ordained, for obvious reasons!
Absolutely, positively, get yourself a spiritual advisor. Don't be afraid to talk to your priest! So what if he gets his hopes up? In the end, if he's doing his job, he wants the will of God for you. If it doesn't work out, it doesn't work out, but by all means, consult your priest, and do yourself a favor: begin praying regularly to St. John Vianney.
Good luck in your investigation of the priesthood! I will say prayers for you. Remember, Peter and Andrew, James and John had to leave their nets behind to follow Christ. Don't be afraid of facing the possibility of changes that may be required in your life in going down this road. Jesus walks with you, brother!
God's blessings.