How to add more mass?

[The Light Among Darkness]

Hello fellow nattys!


First of all I think this forum was a great idea, I already enjoyed reading some very interesting topics.
Now, short story about me. I used to be extremly skinny, I'm 24 now and I trained on and off with probably around almost 2 years seriously.
Never trained in a gym so I improvised with stuff I could make and some I had around the house.
I'm 5'10 and 67 kg (in the morning, otherwise I could hit 71), very lean. My progress measured lifts are: chin-ups 10 reps with 30 kg hanging from my waist, squats 10 reps with 90 kg, and dips with around 35 kg for 10 reps (I'm curious but I've got no idea how this translates to bench-press, heh), these being first sets when I was fresh, I did low reps but rarely so I don't remember that well but I did get to being able to do 1 and a half one arm chin-ups, "hip" one arm push-ups were easy, and pistols around 3 reps with 20 kg.
Now my biggest problem and probably why I halted my progress is that I didn't eat properly. I did try to overeat sometimes but I always felt horrible. It's probably because I tried to up my calories all of a sudden and didn't do slight increases over time.
So now my question, for my height and weight what would be a good amount of calories/protein to start with and how would you guys suggest to increase over time? 

Any feedback is apreciated!

Focus on strength first of all. If your strength is going up, you should grow assuming you didnt hit the natty limit. If it stagnates, up the food. Dont force feed, your body is telling you it doesnt like that. 

You will have to figure out the cals and protons yourself by measuring and tracking weight+ performance over time. People can throw different calculated numbers but that could be too little or too much for you.