You don’t need a Mindfulness retreat that lasts days. You don’t need a guru. You don’t need a class at the local yoga center (unless you just want to bump it up to the next level or become a facilitator or something). All you need is one minute every few hours to focus on yourself by focusing on your breathing.
I use this site two to three times a day and it does wonders for me. It might not do that much for you, but if you’ve got stress, anxiety, or depression, give it a try.