i have been lifting weights on and off for four years and i have always used whey protein, but now i am looking into buying some other supplements to help build more muscle. i bought some primaforce creatine monohydrate from bulknutrition.net and i was wondering if i need to cycle on and off from creatine throughout the year so that my body continues to produce creatine on its own. i was also wondering what other supplements would be good for gaining lean muscle mass.

and from reading other threads i saw that people always say that diet is more important than supplements when looking to build muscle, so currently my diet looks like this:

breakfast
multi-grain bagel
2 eggs
2 pieces of turkey
2 packets of oatmeal

snack
fruit (apple or banana)
cottage cheese or yogurt

lunch
can of tuna on whole wheat bread w/ a little mayo

pre-workout
creatine mixed w/ gatorade
1 scoop whey protein
fruit

post-workout
creatine w/ gatorade
2 scoops whey protein
jelly toast (white bread)

dinner
chicken breast
2 cups of broccoli or 1 cup or brown rice

snack
cottage cheese