This reminds me of that old much loved mantra for salesmen. 'You didn't plan to fail; you just failed to plan'.
Trade 50 shares of QQQQ do not worry about commissions, trade on daily or 60 min chart, record every trade, make notes why you made trade (either opened or closed position). With 50 shares you will limit your loss and will trade live and will have track record you can look back on. Than try to improve you entries and exits. After you master yourself either increase size or lower time frame.