I hear you. Last winter I started out with 8 day trips..nada...zero...zippo fish. But I stuck with it and when things warmed up and trout season began, I began to have fun. Caught 48 fish before the year ended. Looking back I realize those lonely empty days were the time it took to put it all together: how to tie knots, manage gear, try setups, hook size, weighting, bait knowledge, lure making, reading water, what to wear when, talking to experienced fishers etc.
I think you are on the right track looking for some coaching, but keep learning on your own, too. It does get better and it's totally worth it. I get out every week if only for a few hours. It's reduced my stress level enormously. Tell your family that that Dad is a better Dad if he can get away for a bit.
As far as coming home with no fish, explain that it's a learning process. You're trying to learn how to read water, like they are trying to learn how to read books. It takes time.
Good luck and hang in there.
Bernie