It's all about monthly low and monthly high market priced in that way.
My btc orders just for this month buy 27500$ and 28100$
Sell order: 29800$ and 30100$ next month different monthly low/high prices.
So, you bought BTC at 27500$ yesterday and 28100 too and are waiting now to reach 29800 and 30100 to earn 7% / 8%.
I think there is a real chance your sell orders will not be touched anymore this month. So your sell orders will remain. Next month you set new pairs.
I don't know how long you do this already, but there will be times you will have many open orders.
At least it's not ideal to have no stop loss and no money management. You do not significantly profit if price go one direction. At least I would recommend to do some DCA if prices go south.