>I draw a line on advertising for myself
the typical phrase in English, "I draw the line at advertising for myself" would mean that is the thing that has gone too far, something you will not accept. you used a slightly different phrase, but it is still where I draw the line.
>I draw a line on advertising for myself
the typical phrase in English, "I draw the line at advertising for myself" would mean that is the thing that has gone too far, something you will not accept. you used a slightly different phrase, but it is still where I draw the line.