God IS faithful

I know our God is a faithful God, and He has been so faithful over the past few months with everything. Now I'm getting scared though. Because in addition to being faithful I know God does things we don't understand. I'm 5 days away from leaving. But I figured my final paycheck and the donations I have currently and then included the money not included in ground fees that we need to have to cover meals, etc. I still need about $700 before Wednesday. I never recieved that much money in donations in one week... I'm terrified right now. I don't know what I'll do if I don't have enough money. I'll really fit into the culture. I'm supposed to go and help though... not fit in. I'm so torn and frustrated and stressed. ugh!