Adui:

If you can, read this before you go flying tomorrow:

http://www.masportaviator.com/fh_advancedtraining.asp

.........and watch this:

http://www.wild-wings.co.uk/ (Video tutorials / Intermediate video tutorial / Cuban 8)

Just go step by step.

Why not to practice the loop and the roll while descending separately first?

Regards!