can’t find admin panel for new domain

I just bought a web domain and web hosting through GoDaddy…I installed WordPress and had problems getting the site open so I could write a post…the rep there told me to go to my domain: https://www.moneymakingsense.com/wordpress/wp-admin and login creating username and password…I did this and then wrote the post and clicked publish…I went to the domain and the post was not on there. I called GoDadddy back and they said I needed to move Root Directory….I did this and went to the site and found my post on there…however..I didn’t know how to write the next post…I went to wordpress.com and entered the username and password I created earlier and it said username invalid? please help..I need to know how to get to wp-admin so I can write new posts.