Best not to rely on anyone. Most of the time, you might not get disappointed, but when you do get disappointed, you will be really disappointed. The more you rely on someone, and they follow through, the more dependant you will become on relying on others. The only true person that you can rely on, is yourself, and even then, sometimes even you let yourself down. So if you at times let yourself down, how can you really rely on someone else. I understand that at times, there is no other alternative, but when you can, I suggest you just do what you can yourself.
When someone asks, “Can I do that for you?” Think, can I do this myself? Best reply to not offend anyone, “Thank you, but I got this.”
“Everyone has a plan until they get punched in the mouth” -boxer Mike Tyson