From what I know, and my small experience because I'm doing the same thing you are. Trading with a very small amount, in my case just $100. You can choose to take the market price, and your orders will be filled immediately and on every trade a small % will be charged (0.25 % for BTC, and 0.30 % for Ether or LTC), but you can also just choose to select your price to enter the market. This way you will be the maker, and will avoid fees altogether.
I manage to trade a little and get a small profit of $6 from my $100, and no fees where charged, because I always picked my price, and I was always the maker. If this is always like this, then I don't see why I would use market price, so I'm not sure if I'm not missing anything here.
The best part about this if I have 1000$ and I do this 4-6 hours a day 5 days a week like a part time job I'm going to make just as much as someone who makes minimum wage possibly much more. Also when it comes time to pay taxes on my profit it will taxed at 15% because its capital gains.
OR
I can get someone to drop me off/pay $12 to uber at some shitty job doing retail and having to deal with customers each day. Pay for transportation. Spend my whole shift waiting for my break where I have to spend $ on lunch then wait to get off and waste time driving home. Then after taxes I will be making $5 or $6 an hour. The job will be hard and no matter how hard i work I get paid the same and never have the opportunity to get a raise. Then i have to deal with bitchy customers, getting phone calls to come in on my day off or staying late sometimes because the company won't hire enough people to get the job done. Not being able to go anywhere certain days a week because I have to work 12:00 -4:00. Which pretty much ruins your entire day.
OR. I sit in my bed and do this with dignity. Too bad other people can't do this but I think this would be too complex for your average person to do or they wouldn't have the self discipline to stay at it like at a job. Thats the hardest part is not getting distracted and watching youtube or doing something else.