What’s harder? Puppy phase or teenage puppy phase?

i adopted my sweet (chaotic) boy at 9 weeks & he is now almost 14 weeks. although he has his moments, he’s gotten soooo much better at not being a complete psycho 90% of the day lol. we’re almost 90% potty trained & he just slept through the night for the first time last night. The first 2 weeks were … rough. & i began to ALMOST regret my decision. & as im getting my first signs or relief i know that the teenage phase is on the horizon. What do you think is harder? the young puppy phase or the teenage phase? He is a heeler pit mix so obviously a higher energy breed for reference, which i’m sure plays a part.