I'm right there with you trading small. I'd place 50 $100 trades over one $5000 trade any day. Gives you more room for error and forces you to develop a winning strategy over time.
Good luck with the journal. It'll be fun to watch in these markets. When I was first learning to day trade, I would only trade 3x leveraged stocks and vol stocks like these. Nowadays if I'm looking for a downmove I'll just trade futures or puts. The leverage is better for my style of trading and a lot cleaner without the same type of price decay.