You get +1 max fish for every 50str which can be achieved with the str rod for 15k. The rod gives +20 str per lvl. So you're not using stat points on it with a new account. Would recommend getting at least 20 stam so you can afk. After that most high lvl ppl seem to pick int or luck to spam. Once you can farm gold easily, you can buy boxes for gear for str or stam. Or go to the trading tab and look for cheap gear with 40+ stats selling for 8k.