Dm
I would choose to use the professional way over trying to sort it yourself. Its legal protection from creditors is worth every penny.
OK, so we borrowed the money,,, It was a buisness deal which the creditor hoped to make from, not a gift from a friend, they took a chance on you and lost...Dont beat yourself up too much about that, you want to pay something back but its not pay everything back at all costs. You do have to live, 'setting the pay back as high as you can' in the long run wont work. Far better to have a resaonable income and expenditure that is more likey to last the course.
I hope youre feeling better, its so easy when youre feeling a bit glum, scared and down to take some comments to heart. Hold your head up and dont let anyone get to you. As you say, you can only do your best.
Good luck.