If you feel frustrated when finding apartments, remember that,

You are not alone. Many people have the same feeling. Spend enough time, and then you will find one. Set a time frame, up to certain days then decide which apartment to take. Remember that we are looking for an apartment to rent, not to buy. So it doesn’t need to be perfect. No place is perfect and each place has its pros and cons. And you can always find a new place to stay if you realize it's below your expectation after moving in.