I really liked my ghetto bar and plates thing i could still feel my shoulders/traps yesterday

Woohoo I like paaaaain lol.. no pain no game
Anyways yesterday I did p90x cardio and then two or so hours later ran for 40minutes doing 1 minute fast, 1 minute slow. 5 mph run then 3mph resting, then got up to 5.5mph and 3 mph rest for a while nd eventually 5.8mph run and 3mph rest for 40 minutes it was alright i was sweating loved it
I have a fitline T-100 treadmill at home and it feels sometimes like it's going to fall apart hahahahaha... I wish I could have afforded something better

.... I've run 8mph on it before but it feels scary LOL. Also... it's REALLY annoying that it doesn't have preprogrammable buttons/sequences I have to manually tap down the speed and it goes by clicks 0.1 0.1 0.1 up or down... can be a nuissance when trying to concentrate on running. Oh well as long as it gets the job done.
From now on no matter what I do I'll try to run 40 minutes every single day.. I want the goo and fat gone.. also I noticed after such sweaty runs my skin looks so healthy and all that stretchy skin from fat days smooths out which is awesome so double yay
I went to sleep at 197lbs and woke up this morning at 196lbs.
I ate 2090calories yesterday, I realized how easy it's just to chug food down I was tempted to eat more of my beans but I said no to my stomach's cravings. I just worry not to lose muscle when i dont eat but i had 210grams of protein.
I always wondered what is it that really matters in maintaining/building muscle. Is it the calorie intake or the actual protein grams or what... I saw on another forum how a guy was 240lbs but taking 1500calories and 240g of protein.. holy crap... and he was lifting ultra heavy and getting stronger constantly... I'm going to assume its the protein that really matters?