I think the motivation we get from external sources would only last for a few moments. The real motivation is internal and that will last longer. Also you should not waste your time waiting for a boost of motivation. Sometimes we just have to show up even when we don’t feel like it. That is called being disciplined and discipline is what helps us in the long run. We all feel the urge to give up and quit once in a while. But always remember that there is no shame in struggling until you make it. The only people who fail at something are those who quit before succeeding. So just keep trying and keep thriving.