What caused you to want to become greener in the first place? What steps did you take? What are you still hesitating on?
Here's my answer: I can remember the first Earth Day. (Yeah, 1970. That makes me ancient by this time). I became very interested in cutting down on pollution. Unfortunately at that time the main push was pressuring the government to do various things.
My first personal action was to recycle whatever I could. Fortunately the scope of what I can recycle has greatly expanded over the years. I have also found other ways to reduce waste, for example, in adjusting driving habits.
I'd like to do more in terms of renewable energy, sustainable clothing, water conservation, etc., but anything that requires a significant upfront cost is daunting.