Have you tried any guided meditations? There are a lot online with varying degrees of guidance, and a lot of beginners meditation groups will have some amount of guidance. One can find stuff that is not very mired in the religiosity of the Tibetan-style Buddhism. You might also want to try some walking or eating meditation (there should be instructions online somewhere?).
Zen Buddhism sometimes meditates on a Koan (https://en.wikipedia.org/wiki/K%C5%8Dan),
which could probably be done while just going about your day. Never tried this, so if you do, let me know how it goes.
Sometimes I've found taking a minute to reflect on things in the moment (frustrations, pain, fears - I am less good at doing so during moments of joy, ecstacy or anger, as I am too caught up in the moment). I've also had some experiences of action on the street that have felt almost meditative; times when things are so intense that I find myself very aware of everything around me, the combination of exhilaration and fear, the experience of moving in a group together.