Number one advice I've found is don't assume anything about a career or area of study. Go find out if its really what you imagine. The classic example is someone getting a biology degree to find cures for diseases, but they find the day to day work is dissecting
mice and filling in spreadsheets. With agriculture, talk to experts and find opportunities to visit farms and lend a hand. You will know real fast if this is awesome or if you'd like to try something else instead.
Consider your personal flaws and what you need to improve, or work around. Farming and homesteading requires being slightly competent at everything, so to really get ahead, knowing what you are and aren't good at will help direct your funds and efforts because: you need other people. Few farmers can do everything professionally, you may find you aren't the best mechanic, or you really need an accountant.
Social skills. You need to sell stuff, or find others who can sell stuff for you. And the biggest advantage is having a bunch of friends and neighbors who are happy to lend a hand because you are the one who is always ready to help them out. This is where the biggest advantages come from, when you can call someone and get some timely advice, or they call you with a "hey you've got to get over to this
yard sale, there's a
tractor here that's way better than your stupid tractor".
Be willing to talk to, work with people outside your comfort zone. Commercial farmers, organic activists, university researchers, local politicians, religious groups, poor criminals, and wealthy retired landowners all have support networks, unique resources, and opportunities to form symbiotic relationships, especially if you are looking for land, equipment, permission and markets.
You might find a high paying cash job as you explore your options. There are lots of support jobs if you can coexist with commercial industrial ag (parts, installation, soil sampling). Plenty of marketing niches interfacing with the grocery industry. Land grant universities have loads of information, experimental farms and education minded staff that are good to talk to.
And something worth trying: Set your browser homepage to Investopedia for a while and learn
enough about trading stocks, forex, crypto, grain commodities, playing professional
poker (its all the same skillset) to see if you have the knack or if you are
should steer clear.