Horse and Hound training tip: How can I get my horse to go forwards?

Q: How to get a horse more forward: “During the summer I thought I’d cracked it with my mare, but she seems to have gone back into her super chilled mode. She likes cross-country and hacking but in the school, flat work and jumping, she does everything asked, but at the same time it’s like she can’t really be bothered! Do I need to rectify this through schooling alone? Do you think any of the following would help?
Read more at here.