Just a thought, but if you want to feel "alive" why don't you do little things with your wife. I.E. both of you two go to a bar separately and you flirt with her as if she's some random stranger. Meet up at a library and do the same thing. Go on dates that you two wouldn't usually do (concerts, book readings, a lunch at the park, yoga, etc...). Change up the route and monotony of married life.

Even on the exciting part, have sex in public places if that will make things exciting... back of the car, in a bathroom stall, closet, etc. find things to do together that are different and exciting together. Rekindle the marriage and your relationship. Just my two cents...