You have to wait three days for the cash from sale of stock to be available again in your cash account. The number of trades you make is not itself restricted, but how much cash you have available in the account determines whether you can make any new trades at any point.
If you open a margin account instead, you will be limited by the daytrader rule, but with a margin account cash from sales would be available to use again immediately.
Better to open a margin account, in my opinion. Also, if you decide to trade Single Stock Futures instead of stocks, you wouldn't have to worry about any of this.
here's more about Single Stock Futures if you're interested: