Hi all, I am new to CPU mining and have some questions:

My pool 32 bat file looks like this:
NsCpuCNMiner64.exe -o stratum+tcp://xmr-eu1.nanopool.org:14444 -u myaddress-p x -t 4

So my first question is, do I need to put a password? The only monero wallet I have is the online one from https://mymonero.com/#/

Next after I run the batch file, command prompt opens with the above line displayed but nothing is happening. When I run as administrator cmd flashes then closes with nothing happening. What am I doing wrong, can anyone shed light? Thanks