I think you have to take joy in the little things, progress is progress and nobody starts out knowing everything, at that point there will inevitably be more lows than highs, 2 examples from when i first started, 1 - Trying to make a hookshot for my Zelda game and accidentally creating infinite loops and wondering what the hell was happening and why it kept crashing (seems stupid doing this looking back but i was a beginner). 2 - Creating the mini map engine for the same game (this took me weeks if not months of testing to figure out and to this day the only bit of code i wrote down on pen and paper should the worst happen, which thank christ i did because it did). These were majorly frustrating at the time but the joy i had when i figured out where i was going wrong was immeasurable.