Paper Trading Week 3

It is not looking good for us in the paper trading enviroment.

We are at an overall loss of $5,449. COST (Costco): 50 shares, currently priced at $875.50, with a daily loss of $1.18 (-0.13%). The total position value is $43,775.00, with a loss of $271.50.

LULU (Lululemon): 125 shares, priced at $253.84, no change today (0.00%). The total position value is $31,730.00, with a loss of $1,432.50.

NVDA (Nvidia): 100 shares, priced at $102.51, down $0.32 (-0.31%). Total position value is $10,251, with a loss of $2,563.

TSLA (Tesla): 100 shares, priced at $211.46, with a gain of $0.73 (+0.35%). Total position value is $21,146, with a loss of $1,182.00.

My conclusion is that since all the stocks are at a loss and not just one of them, it must be because of an overall downtrend in the stock market and not just in one section of the market like technology or commerce, since my stocks are diverse. What should I do next? Should I keep these stocks or sell them to buy new ones? Next week I plan to buy new Stocks no matter what. I finished SAT and AP Comp Sci but school has started and there is work to be done.