I am calculate the profit from trading altcoin using percentage. That's to say, whatever funds i put into trading even for $14 (as you mentioned), that's enough. As long as we are observant to see price movement, then we can achieve good profits.
$14 is actually good to start investing into trading with some good altcoins as holding some coins for long term can be much profitable. Some good altcoins are at a good dip for now and it can eventually rise some or the other day which can usually give huge returns and even some coins rise up by 5x to 10x which will just multiply your amount. Also $14 can give you a $100 profit if you have good patience and you are ready to invest and forget about the coin. Day trading can be profitable for fast but small profits but I won't prefer day trading with $14 so try to get some profits from that 14$ and then you can start day trading and long term trading in percentages to get you huge returns.
$14 is enough for anyone to start your trading but it won't actually give them that good profits indeed as $14 is not that big amount and some of it is lost into the transactions fees itself.
As OP is new to trading and the cryptos worlds, he can try getting some more knowledge and also try to start paper trading rather than investing your funds into trading. He can move on to trading with his funds once you have good knowledge about trading and also once you start having good profits in paper trading. Paper trading won't actually give anyone any profits in return but indeed it will give them good knowledge but what actual trading is and also they can start getting good experiences which will again be profitable for the future.
With that small amount, he may use it to practice trading. Although there's a chance for him to lose this money, he would still be able to gain experience and learn how to trade from it. Since he's just new in the btc field, I suggest that he should first learn about the basics of not only Bitcoin, but of other cryptos as well. You're going to have a hard time trading if you have little knowledge of the coin. It's also good to be always updated so you have to get used to constantly feeding yourself information and constantly learning new things.