The concept of accountability is a sham.
In theory it's this great and noble endeavor to improve yourself with the help of another person.
"Hey, I want you to keep me accountable to go to the gym every day," or "I need help making sure I do _______ every day," or whatever it is.
Accountability is a cop out. It's fundamental flaw is that instead of holding yourself to a higher standard, there is an expectation that someone else will do it for you. They will hold you to the higher standard and you will rise to meet them.
In most cases, this perpetuates an already existing case of laziness.
Asking for accountability is asking for someone else to help you reach your goals so you don't have to do all the work.
The problem here is that no one else can make you do anything. You are the only one with control over that. If you meet your goal of going to the gym every day for 6 months or a year, it happened because you made it not happen. It doesn't happen because you have a gym partner. That is a peripheral, non-essential item to making things happen.
The only requirement is that you show up and do the work every day.