im trying to get to level 64 cooking so i can do family crest and get the cooking gauntlets (yes, i have to get to 59 mage too but i just need to buy 4k waters and that'll be easy) and stop burning lobsters. As of right now, im in shilo fly fishing, im going to catch around 1800-1900 combined of salmon and trout and cook them. Is this a good way or is there a faster way?

thats the fastest i can think of

that's probably the best way. you can also buy raw tuna from the Karamja gen. store, sell 1 log and buy it back, then sell cooked tuna back to the store.

this is the guide he is talking about