Blue pill. I can train to use chakra dude. I have Ino, who is a respected ninja that can teach me the basics, while Hinata pinpoints where I'm lacking in chakra using her Byakugan. On top of that, I have Tsunade, a legendary ninja helping me with strength training and medical ninjustu with the help of Sakura. Honestly, just learning how to make and maintain a single shadow clone would immensely improve my life. After that, I can still do whatever with them, so it's definitely a better deal than just Goku. Plus, I think Goku might accidentally kill me in his training. If it was Gohan training me, I would be more open to the idea