Maybe you really do need to do it alone. You are, essentially, a single parent even though you are in a (nominal) marriage relationship. It sounds like you may need to get rid of this so-called husband.
I have been there and done that. I was married to a 40-something 14-year-old, similar to yours, and found that I could not, no matter how much I tried, make such a marriage work. The major difference between our situations is that I was also working full time, but still had the responsibility for doing ALL of the child care, housework, yardwork, and errands, along with paying for everything but the house and utilities while he did all of the playing. One person cannot, worlds without end, make a marriage work if the other one has no desire to do so. If i had stayed in that relationship, I would probably be dead by now.
Before leaving, you might attempt some counseling to see if he is committed enough to your relationship to start working on it. If he doesn't want to change his behavior, though, determine whether you want to stay in the relationship and, if you don't, don't waste a great deal more time on it. Be sure, however, before you leave him, that you will be happier single than married because you may not remarry for a while. I most certainly was happier single than in that hellacious marriage, however.
I am not down on marriage. I am engaged to be married in three weeks to an awesome man who is the polar opposite of my former husband. I have been single, however, for close to 10 years.
Best of luck. This is an awful situation to be in. I hope you can, with some professional help and the help of our Heavenly Father, find the right solution for you.