Based on your statement you've already got experience and in spot trading with large profits, $100 is not enough to catch up with those target demands, instead at least almost 500 to 1000$ just to manage the number of profits you want but with this price movement I guess you just need to keep aware with the market price currently the bitcoin is just sitting around of 26-30k USD now unlike before trying to break the 33-35k USD price. If you want to trade I guess 4H time frame is suitable for you and not into a 1D or 24H price movement.
If he did, why would he create the thread? The experience he have is not in trading but it was investing and the profit he got here is only decent. Decent doesn't always mean large, so 100 dollars might be a good amount for him.
This isn't only about the money but he said that he want to try something new. Don't demand large amounts for now because like I said earlier, he is still a newbie on it. In trading or investing, it is important to be aware about the price action. BTC price might be lower than last time but as long as volatility is still there, it is still possible for us to earn a profit on it. Also, BTC can recover and it can exceed $33k-$35k later on.