It is difficult to start and it is more difficult to continue.
Time reveals if you have enough of determination and if the case, project, issue or relationship is really important for you. When we start we are full of hope and expectation of success when we finish. But there is a temptation to resign every time we meet the obstacles or difficulties. So do not give up, what is really important could more energy than was expected but it is worth it and be fruitful at the end.
Have a nice day, a lot of positive motivation and remind yourself why have you started it.