Questions: Health & Fitness

I am 5'9 and weigh over 150lbs and I am in my mid 20s (profile age is fake). I am naturally quite skinny, with my arms being thin. I typically lift 30lbs dumbbells at least once a month to at most every other day, but usually lift once a week. I eat a mix of fast and healthy food, with the latter not really being high in protein. How much more do I have to lift and how much protein do I have to consume to get arms that are as big as my calves? I think maybe I should ditch dumbbells and go straight for those curls found in gyms, and start with 90lbs (45lbs each) to eventually 120lbs as my endgame (60lbs each). I also know that the way the weights are lifted and the amount of reps matters too, with lesser reps being better for muscle growth than more.