Stihlgreenman,
It's good that you are eager to work and have ambition. I have to agree with others here that you need to tone down the attitude. Cost of living varies a lot by area. When you get older and do some traveling it might amaze you how much more things cost, especially in New York. It surprised me that Tomtrees was that low. He offered you some advice and you slam him? Tacky. You could learn a lot from a guy like him as he does more in a year than you've done in you're life. Safe to say his customers like him. Tell us how much a fast food meal costs there Tom.
With becoming an adult you will start having more responsibilities. House payment, utilities, kids and food and such. If you're out of school and have your own place you probably are allready seeing this. If your living at home, out of school, you should be paying your Mom for your share of food, utilities, rent and such. You don't want to become a burden as you said she has to work full time to makes ends meet.
With your current production I'd suggest a smaller splitter. No need to sink money into right now with the amount you do. As you grow you can upgrade and sell the low end model for probably close to 1/2 what you paid. Keep the overhead low if you will.
Me and my Dad(75 years old) cut twice what you do just for our own use. We do it in our free time for a little over a month in the winter. I've used to money saved from heating bills to pay for the heating system itself, saws and supplies and built another splitter to make it easier. No need to have the best of everything at the start. Let the profits pay for the upgrades and your day to day obligations won't suffer. Just some real world advice.