You will make it through. You've found your way out of a tough situation before. You'll do it now and again sometime in the future. There is always a way to get your head above the water - always. You'll get better at it once you gain experience.
You have a fan base of supporters. Your children, spouse, and extended family are cheering you on every day. Chances are that no one doubts your abilities the way you do. In fact, they have faith in your abilities because you've proven your strength time and time again.
As Bernice Johnson Reagon once said, "Life's challenges are not supposed to paralyze you; they're supposed to help you discover who you are."
Now is as good of a time as any to show yourself what you're made of. Confirm to yourself that you're as strong and tenacious as you suspect yourself to be.