need advice: wanting to go to a bible college but stepdad/mom seem against

Perhaps this goes here I am not sure, but let me explain my situation, and first state by asking my question... how should I respond to them?

I feel a calling to ministry, whether that is in the Church, missions, wherever I am not sure. It seems to me that missions is the calling, but time will tell as I pray about it more.

I am planning to attend a bible college that is fairly cheap and is designed to allow people to go right into ministry after 4 years. My stepdad is strongly against this, he is telling me I need to grow up and mature more as I get older because responsibilities are going to be weighing in on me and i wont make money through ministry. And throws a lot of suggestions out there, and basically is trying to talk me out of the idea by feeding me lies, and other things that although they may be true... they dont really bother me.

I realize that I am making a sacrifice but money does not bother me. If I have to live in my car to serve the Lord I will do it. I am willing to have absolutely no retirement when I get out. I understand this may not make sense to some people, but I want to serve God. I know He'll take care of me more than anyone else.

However... my question is how do I respond to my stepdads remarks. I've been really silent on the issue, and just agreeing or saying things like "yeah I agree, I know what youre saying"... I feel this is the appropriate way to respond, but at the same time I feel like I am lying to him. I'm am taking into consideration what he is saying, but my worries and fears arent the same worries and fears he has because he is a nonbeliever.

My mom (I think) silently supports him, but she doesnt want me to feel overwhelmed so she doesnt say anything.

If I tell him my reasoning behind why I don't care like "God will take care of me", he will just come back with a sarcastic response and I don't like hearing the Lord mocked, and I don't want to lead him to saying that about God. I know it'll be enivitable especially if i am going into ministry, but should i just keep silent or should i tell him why im not worried?

Not sure what the answer could be, or what to tell them per se. I am a parent but my kids are still young, all 10 and under... I believe parents sometimes have thoughts of what their children will do when they fly out of the nest. Sometimes, if their children dont do what they want them to do, it is a disappointment to the parent. Sometimes parents can be over protective as well and want their kids to succeed and not go without. Come up with a game plan of what your intentions are, research everything there is to research and let them know you know the pros and cons of ministry. If they cant except it, then pray for them that they will have peace with what you want to do with your life.

And just because you go into ministry doesnt mean you have to be poor. I know the military is usually looking for chaplains and it isnt a bad life. And chaplains are always needed, you cant outreach to a lot of people and families that way.

Just my $.02