Are the legendary drop rates supposed to be this bad or am I just incredibly unlucky?

Been playing for a month and only got Suicune.

I’ve been using the reset trick for an hour on pikachu and arcanine island but no luck.

These drop rates are ridiculous to the point I feel if I played the game wants me to play I may never get a legendary.

It’s a bit demoralizing because I’m loving the game but I feel like a special part of it is inaccesible due to the insane rng required for some legendaries…