Mike Jay has given you excellent advice and some possible leads.
Gaining experience, making contacts, establishing a track record, and paying your dues is the way to start.
You sound young, as I once was.
I have rented my 1/10
acre farm since 1994. It is not necessary to own land or borrow money or take public funds to have a successful farm business.
Surely there is a landowner in NW AR who is willing to let you use a small piece of vacant ground in exchange for the upkeep and a percentage of your gross income from their land.
If you are motivated you could do this while enrolled in the Horticulture Program and working at least part time.
Find your niche, become the expert at growing and
marketing your crop.
It will not be easy-it will be hard.
If you have the "fire in the belly" you will stay focused and do what it takes.
Anything else is just talk.