Would pantyhose hide panty lines?

I have a pair of tan cadence stretch breeches. How tight should they be? I mean, I'm afraid they might be a bit too tight cause they take like eight minutes to pull on and that's not made any better by the fact that they are made out of spandex like material. How tight should riding breeches be? And how can i get rid of thick panty lines? I can't wear thongs, my parents won't let me, so I have to wear these black briefs with lace around the leg openings and waistband sooo embarrassing cause they show through really thick. How can I get rid of them? Also, I can't go commando. I've tried, and it just doesn't feel comfortable. Now I've been told the lace makes the lines worse so...