Stuck between a rock and a hard place

So I have been doing what I need to in order to start the weight loss surgery. I swear things keep happening! For example I baby sit like 11 different kids and what do I have to show for it nothing. I am trying to be patient and understanding and work with people but I am not getting anywhere. Then the car broke down again. I knew it was coming but I was hoping it could last a little longer. My child support has been messed up lately so I never know when I am going to receive a payment so when I have a bill due that is dependent upon that money I have to get into surgery money to pay it, or if I need money for a co-pay, or something else that comes up. I have so many ads on the classifieds and Facebook. I am willing to part with items I love, that I have had for awhile. The surgery would be life changing and after seeing my best friend who had the surgery in Jan. I am excited to do it, despite all the hurdles. Thankfully my boyfriend has been supportive and since the car broke down he has really been there. I love him so much and some days he's the happiest part of my day. As of right now I just have a "fund", it's not for surgery or a car it's just savings. I am still trying to figure out how to pull both off. I don't want to give up yet. The diet changes have been super hard, I actually find myself feeling hungrier and my cravings are so out of control. The good news I have stayed off the soda for about 2 months now. I still need to reduce the stress in my life. That will probably never happen, I am working on it though. I just hope the hurdles become less and less instead of increasing.