I second everything LouLou said. You need to know your sensitivities. You also don't want to abuse the orals either or you will lose them to resistance. Inhaled antibiotics are great in between exacerbations, but you usually don't use them exclusively for an exacerbation.
Honestly, I sense that you don't have a good relationship with your doctor. It is important to have a good relationship where you can work together as a team on your cf care. It is very important to have this relationship and trust, so you are comfortable enough going to your doctor early, before you are depreciate and scared of IVs. This is where orals are most effective anyway, when used early. You also have to be honest with yourself and know when you need help, in the form of IV antibiotics.
It sucks, but we all have to take time outs from our life to treat these infections. It sounds like you have 3 kids, so think of them too. You will miss each other during this time, but you will have more quality time after. Keep up with your inhaled antibiotics and exercise, etc to prolong the time until your next exacerbation, and be honest with yourself again, and know that it will happen again. Make sure you learn as much as possible from your previous exacerbation, review what happened and the treatments with your doctor after, and have a plan for next time.