A teacher who will offer you guidance, clarity and compassion re instructions and questions woud be most helpful. You could attend a course/group, one-to-one or a residential retreat.
Possibly explore approaches to find one that you "take to"; some practices (e.g. TM) use a mantra, others more directly connect with breath or body in sitting or movement/activities. Possible options you could consider:
Courses/groups: Mindfulness MBSR/MBCT (I and colleagues teach groups or individuals),
A group can offer a supportive interactive environment and home-learning
methods (MBSR) is useful if you can't manage a face-to-face arrangement.
Swami Saradananda (recommendable, I've known her over 20 years)
London Insight - various teachers, practice days and group-sittings: londoninsight.org
Retreat centres: Gaia House (teachers also regularly link via London Insight)
Dhamma Dipa - in Hereford and worldwide: http://www.dhamma.org
Read or CD's: 'The Mindful Way Through Depression' includes a CD by Jon Kabat-Zinn You dont need to be suffering from depression! its useful in regard to anxiety and practice.
or book: 'Full Catastrophy Living' by Jon Kabat-Zinn offers a comprehensive approach;
or book: 'Calming Your Anxious Mind' by Jeffrey Brantley
Wish you the best and do let us know how you are progressing. Enjoy!