I already have 33 cooking but I need some advice on cooking for f2p from level 33 to level 99 (with some profit).

Cook salmon and trout till lvl 65 then do uncooked pizzas and either keep doing that (you make a profit) or go onto lobsters or swordfish where i dont think you will unless the prices have changed. But only do lobsters at like 72 so you dont burn and swordfishs at least 80 so you dont burn so much

Not a lot of profit to be had f2p, unless you fish everything yourself.

 

Trout/Salmon as high as you can stand. Check out the cooking guide here on Tip.it to learn when you stop burning lobsters and swords.