In this day and age when things move so fast that you barely have the time to stop and think where you are going, it's quite natural for us to not find time for ourselves. Time to get in touch with our inner selves, do something we really enjoy, like sketching, painting, writing, singing, cooking... whatever it is that gives you that feeling of satisfaction, pleasure, of having done something constructive. And it's not that you don't have any such interests. I'm pretty sure everyone has at least one such interest. It's just a question of discovering and/or acknowledging it.
But you know what the worst part is? We don't even realize that we need to find time that is just ours. We don't acknowledge that we ourselves are the only ones who can make ourselves truly happy, truly satisfied with life.
Pretty recently, someone whom I wouldn't exactly call a friend but who I am quite friendly with and have a lot of respect for, talked to me during a phase when I wasn't feeling too good about myself. He told me, among other things, to spend money on myself. Well, yes, I'd always known that spending money on myself makes me feel good, but I'd forgotten. In the last couple of weeks or so, I rediscovered that spending even a small amount of money on myself can make me feel totally awesome if it's spent in a well thought out way. You don't have to throw away a fortune, but loosening the purse strings once every so often is certainly good for you. Whatever is in your bank account is your own hard earned money. What use is it, if you don't spend it on things that make you happy? After food, shelter and clothing, isn't this the exact reason why you make the money in the first place?
In short, here's what I'm trying to say. Find your passion in life if haven't already. Once you have, pursue it. Not necessarily full time, but maybe as a hobby or an occasional escape from your cares. Spend time with just yourself, doing stuff you like doing. Stuff that makes you feel good about yourself.