Life like Mr gump said sure is a box of Chocolates & some time no matter how wisely you choose you seem to get nothing but hard centres, you just have to try & bear in mind (not always easy) that situations change over time & what you are going through (what ever that is) will also change, TBH I have been where you seen to be at 2 & the the point of wanting to throw the towel in, but if I had given up when I felt like that I would not be where I am now, with family in a place I like to live.
Not an easy perspective to maintain, but try to draw comfort from the fact that no matter how bad may feel its always better than the alternative.
if its woman issues, try finding out what the rout of the issues are & deal with them at the source, its often a good idea to look back & think "when was I last happy?", then see what is different from that time & you may find your answer, its by no means an exact science, but worthy of consideration, & as other have suggested, try doing something you like that you have not made the time for in a while as alone time to reflect is a healthy way of bringing things to the foreground of your mind its also always worth being spontaneous with the better half if things have become unsettled, try getting some time out alone away from the kids, time to re connect without life's all to constant little distractions.
Hope things become more manageable & enjoyable for you soon.
