I'm assuming you want to be more mindful rather than dismissing it altogether.
You know that the Buddha ditched his job, family, politics, sports, religion, all the rest on the path to his nirvana? If you can, put those to rest during your meditation sessions, maybe, or look more deeply into how much loving-kindness you have for your family and consider how you can skillfully manage your family's status and future. Lay followers can't really practice strict Buddhism as well as monks, but that doesn't mean that occasional mindfulness now and then won't help you at all. In fact, lay arhats are quite well-known. Try setting down your worries, your guilt, your longing, your misery while you breathe in and out slowly, go for a walk, soak in your morning shower, do your business on the toilet. Just try things out if you really want to practice it more, watch what happens.
On the other hand, if your focus on being mindful is what you see as your cause of pain, misery, grief, and strife, abandon it. Medicine is poison in the wrong dose. You should sort out your problems AND study what Buddhism is and what it's about before you commit yourself to inner peace, if you're really interested in it. Maybe check out a meditation retreat to celebrate when you have time off, so you'll be that much less stressed when you want to devote time to it and learn with living teachers.
Writing down your thoughts on stresses and all that on paper can be a good meditative task/stress relief. If things are really quite severe, you should try to see a psychologist or psychiatrist, things may be more than just spiritual in your case.
You seem to be doing alright if you've made it this far along and can be posting here :) Hopefully things pick up!