saving fruits

i noticed that one big problem i have is that i can't save up fruits to trade for perm portal simply because i'm too soft, whenever someone from my friends list ask for a fruit i simply give it to them, i already gave away 3 yetis, 1 gas, i lost around 3 kitsunes, all because my friends would ask "please fruit" i gave a yeti for a guy with perm dragon that is a level 900, he probably equipped dragon back now, so im just letting go of somethings that are bothering me, if anything i would love to receive some tips on how to solve this, i feel really bad since i got called a bad person many times for not accepting to trade yeti for gravity spider and love, or for not having anymore buddha fruits to give to low levels