I would have to say cash. Make sure you really understand your runway. So you know where your money is spent. How long do you have? And aside from cash what is your personal runway? Because there is the money aspect and, there is your personal mental health being. Can I sustain these ups and downs for the next six months without a paycheck? Am I feeling depleted that I need to not be doing this or, I need to take a break? I think it's your personal runway and also your cash. Making sure you spend it wisely because cash is king. If you don't have enough money, you are going to be out and you are done.