Sorry you are worried about your LO. please try not to blame yourself though- some babies just take their sweet time getting to those milestones! I ditto the suggestion of getting down on the ground with your DD to lead by example of what you want her to do, this tactic worked for me when I was trying to encourage my DS to crawl (he was a bit of a late crawler) I felt a little silly and ridiculous crawling all around the house but I do think it helped. Also, my son does give into peer pressure fairly easily
- he has learned many things from watching other babies. If it's possible to have her around other kiddos it might help- at the very least the distraction of other babies might allow you to do some excercises with her without her getting upset.