Hi gerry21,
Thanks for using our theme. First of all go to dashboard -> appearance-> Ambition theme options -> Home Page Blog Category Setting and select the category which you want to display.
Doing this you can show specific category post. If you are using sticky post to display slider in your front end then the sticky post will also be displayed in your blog page.
To remove those sticky post Go to Appearance -> Customize -> Ambition theme options -> Custom CSS paste the below CSS code and Click on Save & Publish button at the top of the options panel.
#main .sticky{
display:none;
}
Thank you!
.
.