I am 30, similar life style, don't see myself as stuck in a rut. Its all a matter of perspective. I was fortunate enough to reach a very low low in my life which allows me to be grateful for just having a mundane and average life. Instead of thinking, oh my life is rubbish, i think, damn i have it great, just ordered a pizza from pizzahut with some cheesy jalapeno bites. I got my feet up and i am about to watch a film on my projector and a fridge full of beers. That old saying, you don't now what you got until its gone. People rarely appreciate their simple lives until they have been ridiculously close to a terrible prolonged life experience. You may find that if you don't fix that attitude on life or outlook, it won't matter what you fill your life with, beautiful women, amazing hoilday's, success at work, great experiences doing hobbies that you enjoy, you will still find yourself even after all those things in same position feeling sorry for yourself. I know my dad fell victim to this mentality, it took years to talk him out of it and he still has a terrible fear of being alone. It is that inner voice telling you that there is more out there and you missing out on it. Just have to learn to be at peace with your life and make the best out of every day, easier said than done but its not impossible.